QCAD Bugtracker

QCAD - 2D CAD System.

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IDCategoryTask TypeSeveritySummaryStatusProgress  desc
754QCAD (main)Bug ReportLowAdding or removing additional viewports - gives unwante...Assigned
Task Description

Windows 7-64
When adding or removing additional viewports,an extra unnecessary window of the viewport is created.

772QCAD (main)Bug ReportLowIsometric grid: toggle buttons not updatedAssigned
Task Description

- Switch isometric grid off
- Switch isometric grid on using drawing preferences
- Tool buttons don’t reflect correct status

794QCAD (main)Bug ReportLowApplying Solid grid lines - not workingAssigned
Task Description

Application preferences > Graphics View > Appearance - Solid grid lines doesn’t change anything?

864QCAD (main)Bug ReportLowTemplate Preview/Info doesn't shows the sheet orientati...Assigned
Task Description

“Create New Drawing from Template” Browser can’t readout the Page orientation ...

879QCAD (main)Bug ReportLowAutosave function not working if file is opened directl...Assigned
Task Description

If a file is opened by clicking on it in an open ZIP archive, autosave will not work.

Linux Mint -64

Autosave function not working, error warning given instead!

893QCAD (main)Bug ReportLowLibrary Browser - Edit Library Item - opens drawings al...Assigned
Task Description

Library Browser - Edit Library Item - opens drawings always with grid.

- If I switch between opened drawings back and forth the grid will disappear ....
- If I switch the grid button between visible (it is already visible!) and invisible the grid is gone ....

Just Cosmetic ... ;-)

948QCAD (main)Bug ReportLowmainwindow example segfaultsAssigned
Task Description

As far as I can tell, it never worked.

#0  0x0000000000490527 in QFormInternal::domPropertyToVariant ()
No symbol table info available.
#1  0x000000000042aea9 in QFormInternal::QAbstractFormBuilder::toVariant ()
No symbol table info available.
#2  0x00000000004498a6 in QFormInternal::QFormBuilder::applyProperties ()
No symbol table info available.
#3  0x000000000042475f in QFormInternal::FormBuilderPrivate::applyProperties ()
No symbol table info available.
#4  0x000000000042e83b in QFormInternal::QAbstractFormBuilder::create ()
No symbol table info available.
#5  0x00000000004493c0 in QFormInternal::QFormBuilder::create ()
No symbol table info available.
#6  0x000000000042182e in QFormInternal::FormBuilderPrivate::create ()
No symbol table info available.
#7  0x000000000042fa37 in QFormInternal::QAbstractFormBuilder::create ()
No symbol table info available.
#8  0x00000000004225a2 in QFormInternal::FormBuilderPrivate::create ()
No symbol table info available.
#9  0x0000000815eed3d7 in QFormInternal::QAbstractFormBuilder::load ()
   from /usr/home/ice/w/qcad/qcad/plugins/script/libqtscript_uitools.so.1.0.0
No symbol table info available.
#10 0x0000000815ededad in QUiLoader::load () from /usr/home/ice/w/qcad/qcad/plugins/script/libqtscript_uitools.so.1.0.0
No symbol table info available.
#11 0x0000000815eda326 in qtscript_QUiLoader_prototype_call (context=0x813262240)
    at ../../generated_cpp/com_trolltech_qt_uitools/qtscript_QUiLoader.cpp:282
        _q_arg0 = (QIODevice *) 0x813fe5610
        _q_arg1 = (QWidget *) 0x813ffdcd0
        _q_result = (QWidget *) 0x8006e2c00
        _id = <value optimized out>
        _q_self = (QUiLoader *) 0x813f08d40
#12 0x0000000805fc9f78 in QScript::FunctionWrapper::proxyCall () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#13 0x0000000805ee418f in QTJSC::NativeFuncWrapper::operator() () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#14 0x0000000805eb93ee in QTJSC::Interpreter::privateExecute () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#15 0x0000000805ec1ccd in QTJSC::Interpreter::execute () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#16 0x0000000805ec1ff9 in QTJSC::Interpreter::execute () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#17 0x0000000805fa9743 in QScriptEnginePrivate::evaluateHelper () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#18 0x0000000805faabc6 in QScriptEngine::evaluate () from /usr/local/lib/qt4/libQtScript.so.4
No symbol table info available.
#19 0x0000000800ac5aae in RScriptHandlerEcma::eval (this=0x811f435e0, script=<value optimized out>, 
    fileName=<value optimized out>) at RScriptHandlerEcma.cpp:855
        err = {d_ptr = {d = 0x7fffffffcf50}}
#20 0x0000000800ac65c5 in RScriptHandlerEcma::doScript (this=0x811f435e0, [email protected], 
    arguments=<value optimized out>) at RScriptHandlerEcma.cpp:851
        fi = {d_ptr = {d = 0x813f94700}}
        globalObject = {d_ptr = {d = 0x813ff1240}}
        contents = {static null = {<No data fields>}, static shared_null = {ref = {_q_value = 3936}, alloc = 0, size = 0, 
    data = 0x809bb387a, clean = 0, simpletext = 0, righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, 
  static shared_empty = {ref = {_q_value = 19}, alloc = 0, size = 0, data = 0x809bb389a, clean = 0, simpletext = 0, 
    righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d = 0x811c11800, static codecForCStrings = 0x0}
#21 0x0000000000417d13 in MainWindow (this=0x7fffffffd4b0, parent=<value optimized out>) at MainWindow.cpp:99
No locals.
#22 0x0000000000416ad9 in main (argc=1, argv=<value optimized out>) at main.cpp:35
        app = <value optimized out>
        window = {<QMainWindow> = {<QWidget> = {<QObject> = {_vptr$QObject = 0x4992b0, static staticMetaObject = {d = {
            superdata = 0x0, stringdata = 0x809933ae0 "QObject", data = 0x809933b80, extradata = 0x809ba94c0}}, 
        static staticMetaObjectExtraData = {objects = 0x0, 
          static_metacall = 0x80985cd80 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, d_ptr = {
          d = 0x811d28600}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x80993cc40 "Qt", 
            data = 0x809940560, extradata = 0x0}}}, <QPaintDevice> = {_vptr$QPaintDevice = 0x499478, painters = 0}, 
      static staticMetaObject = {d = {superdata = 0x809ba94e0, stringdata = 0x808e66be0 "QWidget", data = 0x808e670c0, 
          extradata = 0x809282360}}, static staticMetaObjectExtraData = {objects = 0x0, 
        static_metacall = 0x8087899a0 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}, 
      data = 0x811d28748}, static staticMetaObject = {d = {superdata = 0x809282380, stringdata = 0x808ec04c0 "QMainWindow", 
        data = 0x808ec0660, extradata = 0x8092abc60}}, static staticMetaObjectExtraData = {objects = 0x8092d1880, 
      static_metacall = 0x808e5aaf0 <QMainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>}}, 
  documentInterface = 0x811d31600}
        ret = <value optimized out>
976dxflibBug ReportLowDXF import errors related to hatches, textsAssigned
Task Description


980QCAD (main)Bug ReportLowIsometric Projection / blocks / wrong layer are used in...Assigned
Task Description

Isometric Projection used on a selection which contains blocks will mix up the layer affiliations.
No blocks - no problems ;-)

1008QCAD (main)Bug ReportLowDXF (dxflib) compat issuesAssigned
Task Description

Git head as well as 3.4.5 (trial), both with dxflib

Start up QCAD, (with existing or new configuration, doesn’t seem to matter), “Save as” the completely empty drawing, choose “R15 (dxflib)” on Pro (only this one is available on community), save drawing.

Fire up AutoCAD 2000, try to load the empty drawing just saved.


DXF read error
Error in APPID Table
DXF read error on line 941.
Invalid or incomplete DXF input -- drawing discarded.

Problem not present when a completely empty drawing saved using Teigha in R15 format is opened (ie. it just results in an empty drawing in AutoCAD 2000). Problem is also not present when saving an existing drawing with Pro (trial) with Teigha and opening it in AutoCAD 2000. Problem does present when trying to open a dxflib-saved drawing in AutoCAD 2000.

Empty drawings created with both dxflib in QCAD Pro 3.4.5 trial and Teigha whatever in QCAD Pro trial 3.4.5 are attached. (Community Git 135fd0 is identical to Pro - same dxflib version.)

1087QCAD (main)Bug ReportLowRuler ticks are not corresponding to the grid pointsAssigned
Task Description

Ruler ticks are not corresponding to the grid points,
Ruler will completely disappear at a certain zoom level,

Drawing unit: inch,
Grid settings: Grid 1, Meta Grid 12,
Dim Label Format: “Engineering, 0’-0.0”

see topic below:

1203dxflibBug ReportLowImages not saved (dxflib)Assigned
Task Description

I am doing a bit of landscaping and using a (big) ortophoto as one of my layers in order to sanity-check on the ground measurements.

The layer contains a point and the image and nothing else.

The image is a 8MB file: “PNG image data, 4200 x 2980, 8-bit/color RGB, non-interlaced” and it is scaled to 210 coordinate units (meter) horizontally in the drawing.

With approx 50% probability the image disappears during Save, as see for instance in this diff of the DXF file:

      @@ -158699,28 +153057,6 @@ AcDbXrecord
      -  5
      - 90
      -  1
      - 10
      - 20
      - 11
      - 21
      -  0

The point in the same layer does not similarly disappear, the bug only seems to affect images.

I have seen this bug from version to git as of yesterday (63e06c778926a803bdfbffdf27b8c24d41511072).

I have not been able to correlate the bug with anything.

Looking closer at the DXF file (attached), there seems to be some residuce of attempts to insert images in protected/invisible layers, so this may be some kind of refcounting issue.

(Any chance of getting FreeBSD into the “Operating System” field ?)

1242QCAD (main)Bug ReportLowSVG import DPI box should use localized decimal separat...Assigned
Task Description

I wanted to make it so, that SVG units translate 1:1 into CAD units; I use the German localized QCAD and entered 25,4 into the box with the wrong result, i.e. the same as 25; Entering 25.4 got me what I wanted: The question box needs the point and ignores the comma. Would be nice if it could use the localized separator.

1339QCAD (main)Bug ReportLowLibrary Browser unstoppableAssigned
Task Description


Even with the Application Preference, Library Browser, NO Update on Start up,
the Libray Browser scans the directory, a proces that can’t be stopped or closed.

1427QCAD (main)Bug ReportLowInfo Tool / Polylinie Area (II)/ Preview brokenAssigned
Task Description

Print “Command Line” and as “Add measurement to drawing” works as expected.

1443QCAD (main)Bug ReportVery LowView > Status Bar remains uncheckedAssigned
Task Description

Status Bar menu remains unchecked even it is toggled on or off

1445QCAD (main)Bug ReportLowSwitching off grid scaling can break rulersAssigned
Task Description

See also:

1691QCAD (main)Bug ReportVery LowIssue with Layouts after "File-Revert"Assigned
Task Description

QCad 3.19.2 Professional, 64bit, Liux Mint

1. Open some saved drawing with viewport entities on layout block (paper space). Print Preview mode is “On” automatically.
2. After “File-Revert” drawing is reopened on layout block (paper space), but now Print Previw mode is “Off” .

For example can try on “flange.dxf”

1719QCAD (main)Bug ReportVery LowUndo on converted drawing leads to wrong label position...Assigned
Task Description

Drawing converted from inch to mm - undo leads to wrong dim label position. I can fix that with “Reset Label position” but it would be nice if QCAD could to that in first place.

1843QCAD/CAMBug ReportLowCreating ToolPath StallsAssigned
Task Description

Hi Andrew,

Still working with and on CAM HPGL for the HP7580 pen plotter.

I have added a penplotter test drawing, that might be used for testing en callibrating plotter and pens. You may add it to the Examples-directory.

QCAD has a lot of trouble creating toolpaths and exports. Much too often it shuts itself down, or gets stalled. Why? I am not sure.

1847QCAD/CAMBug ReportLowBUG MEMORYAssigned
Task Description

Hi Andrew,

Still working on creating HPGL.PLT toolpaths for the HP7580 pen plotter. QCAD has some trouble creating toolpaths. Too often it shuts itself down, or the PC gets stalled.

Recreating the same error however is possible

1900QCAD (main)Bug ReportVery LowRemote shares initially not accessible.Assigned
Task Description

My data files are stored on network shares (synology) with a GB link. QCAD Pro is run in Admin mode.

While in my Windows browser all remote shares are accessible (Green), in the QCAD file open menu they are initially shown as not accessible (Red). By accessing a specific drawing file in a remote share, the share will open and turn green.

Same behavior using ‘Open recent’. Always the message is given that the requested file does not exist, and the file is wiped from the ‘Recent Open’ list. Only if the share is first accessed through ‘Open’ with a random file, it will turn and a ‘recent open’ file for that share will open.

Drag and Drop from a remote share will never work.

1905QCAD (main)Bug ReportVery LowView > Property Editor: Changing attribute of block cha...Assigned
Task Description

See also:

1913QCAD/CAMBug ReportLow3D Simulation Behaves oddAssigned
Task Description

Hallo Andrew,

testing the drill toolpath I used single point markers.

In 3D simulation the tool drills the toolpath AND uses the drill as a mill.

Cam Export and generated G-code is not effected.

1916QCAD (main)Bug ReportLowMoving an object in an angled viewport with mouse does ...Assigned
Task Description

To reproduce

1. Select a new view-port in model-space
2. Select the appropriate paper-space
3. When the paper space opens change the angle of the viewport to 90 degrees
4. Place view-port in paper space
5. Select the view-port in paper-space by clicking it
6. Try to move the object itself in the view-port (by clicking the “top” dot) to the right by moving the mouse to the right while holding the left mouse-button.


The object in the viewport moves down vertically NOT to the right


The object moves to the right

(It seems mouse movement does not compensate for the rotated angle of the viewport)


None, except compensate for the angle in your head and moving the mouse the “wrong” way when correcting the placement of objects in the view-port

1971QCAD/CAMBug ReportLowCAD/CAM 3D SimulatorAssigned
Task Description

Hallo Andrew,

Found a bug in the 3D Simulator execution

1972QCAD (main)Bug ReportLowHatch import fails for boundaries with many very small ...Assigned
Task Description

See also:

1974QCAD (main)Bug ReportVery LowFile > Print Preview: Cannot move paper in new drawingUnconfirmed
Task Description

Yesterday I set up a Windows 64 bit install of QCAD Pro which shows the same bug I have been seeing for a while in the Community linux git repo.

Create a new drawing and then go to “Print preview”. Enable “Move paper postion”, the cursor changes to the hand icon, but the paper position is unable to be moved. Only by saving the drawing, exiting the program, restarting and reopening the drawing, will the “Move paper postion” function correctly.

Affected versions tested:

Windows 64bit installer download, as of yesterday.
Linux 64bit build from git, about 20minutes ago.

For what it’s worth, this bug is not present in this previous git checkout:

Version: (3.21.1)
Build Date:
Jul 2 2018

Qt Version:
gcc 6.3.1

Thanks for a great product.

2014QCAD (main)Bug ReportLowFocus on Options Toolbar failsAssigned
Task Description

Scenario: e.g. Tools Move/Copy and Rotate switched to “use without dialog.

Launch within a drawing Move/Copy, use the Keyboard keys CTRL + Space to focus on the Option Bar - the field for Numbers is Highlighted and I can change it. Further navigation with keys on the keyboard depends on remembered option (copy yes/no etc what make a navigation possible or not. It looks like the navigation with the Arrow keys is focused on the canvas and sooner or later the courser will jump to the Command Line or Property editor. Same behavior with the Rotation tool.

See also:

2041QCAD (main)Bug ReportLowcircletangent2 doesn't solve correctly if the defining ...Assigned
Task Description

In my example I can’t draw a circle with circletangent2 if the defining point is on one of the defining tangents. The tangency is lost when I try to do this.

I attached 4 screenshots: TheExample.png, TryingPoint1.png, TryingPoint2.png and The_Point_Isn’t_On_The_Tangents.png.

2048QCAD (main)Bug ReportVery LowMove / Copy to current layer fails when reference point...Assigned
Task Description

QCAD 3.24.2 / macOS x86_64 10.14.6

Starting with empty doc:
1. Draw any object (e.g. a rectangle) on layer 0.
2. Create new layer (”1”) with color, say yellow.
3. Select new layer
4. Select new object
5. Modify → Move / Copy
6. Click reference point
7. Click target point same as reference point
8. In “Move / Copy Options” dialog, select “Delete Original” and check “Use current layer and attributes.” Click OK.

The moved object stays on the layer it was previously on. Using “Move / Copy” as a quick way to move a selection between layers is not useful even though it appears to be the recommended way in a Google search.

Note: if “Keep Original” is selected instead, the copied object is placed on the current layer and the original object remains on its layer, as expected.

Note: if the target point is different from the reference point, the moved object is placed on the current layer as expected.

There are other workarounds too, cut / paste with “To current layer” checked seems to work, as does chaging the layer in the Properties Editor.

2068QCAD Community EditionBug ReportVery LowNon-english text in upper/lower index becomes UTF codeAssigned
Task Description

How to reproduce.

1. Create a text field with some non-english words in the upper index. (see attached pic1.png)
2. Save the project and close QCAD.
3. Run QCAD and open same project.
4. Now upper/lower indexed text becomes not human readable UTF codes. (see attached pic2.png)

Tried different fonts - doesn’t help.

Linux ntb-kirill 3.10.0-1062.12.1.el7.x86_64 #1 SMP Tue Feb 4 23:02:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
CentOS Linux release 7.7.1908 (Core)

2088QCAD (main)Bug ReportVery Low column headers of the "General: tool settings " resize...Assigned
Task Description

Open QCAD and the application preferences. In the section “General: tool settings " you can resize the columns: Menu, Shortcuts etc.
The problem is that it is not intuitive. The first divider is not selectable and the second moves the first, only backwards.

2092QCAD (main)Bug ReportLowcrash when changing shortcut in preferencesAssigned
Task Description

The application crashes when I try to change a shortcut in the preferences. And only after resizing the preferences window.
In the attachement are the cli warnings.
I also tried the snapshot with the same result.

2097QCAD (main)Bug ReportVery LowVery hard to snap to baseline reference point of dimens...Assigned
Task Description

With default autosnap settings reference points included I find it very hard to snap to the baseline reference points of a dimension.
I manage to do it by setting snap to reference point only and zoom out till I see the entire dimension element.

2099QCAD (main)Bug ReportLowDIM Label, Square Symbol doesn't adopt layer attributesAssigned
Task Description

The square symbol offered as symbol in DIM label is the only symbol which doesn’t adopt the layer color.
If I print a drawing in full color it leads to a black symbol in an otherwise colored dimension.

It is also the only symbol which has a solid filling what is confusing when you work with it in Model_Space ...

2125QCAD (main)Bug ReportLowText disappears when you zoomWaiting on User
Task Description

When I zoom, the text disappears in certain zoom levels after updating to the latest version.

2169QCAD (main)Bug ReportLowMissing G-Code G00 X0 Y0 when placing hole at x0 y0Assigned
Task Description

When placing a hole at x0 y0 there is no G00 x0 y0 in the exported G-Code.
So the first cut was made at the current position of the tool, not at x0 y0!

2205QCAD (main)Bug ReportLowText rendering fails in certain zoom levelWaiting on fix in 3rd party library
Task Description

Drawing with text, zoom in and out with one of the common methods, text will disappear in certain zoom level

Same drawing zoomed in and out in doesn’t show this effect - works just fine.

2235QCAD (main)Bug ReportLowInvalid symbol table nameAssigned
Task Description


I have got a dwg file from architect, which I can open, but I get “Invalid symbol table name” when I try to save it. I do not know which software was used to create it.
I have tried to change all spaces and national characteds in block and layers names as advised elswhere, but that didn’t help.


2245QCAD (main)Bug ReportLowBold fonted text appears regular sized - v 3.26.2Assigned
Task Description

Text that has been applied to a drawing with the ‘bold’ attribute sometimes appears as regular, un-bolded, text. When increasing the viewing magnification one will see the text adopt the bold attribute, but at smaller sizes the text appears without the bold. This can be confusing causing the draftsman to double-check whether the text had the bold attribute.

Current version: 3.26.2

Previous version: 3.22.1 (note: in this version, bolded text appeared bold at all viewing magnifications.)

173QCAD (main)Feature RequestLowexplode text to lettersAssigned
Task Description


208QCAD (main)Feature RequestLowSVG export: support custom line weightsAssigned
Task Description

Find way to support custom line weights for SVG export. See also forum thread: http://www.ribbonsoft.com/rsforum/viewtopic.php?t=1594

277QCAD (main)Feature RequestLowcommand line arguments: allow class name after -execAssigned
Task Description

command line arguments: allow class name after -exec

293QCAD (main)Feature RequestLowmulti-select for blocksAssigned
Task Description

It would be nice if one could select multiple blocks in the block list at once (holding ctrl or ctrl+shift). Main purpose would be to delete them if they are not needed anymore. If possible, the same applies to layers.

355QCAD (main)Feature RequestLowRemember function for dimension OptionAssigned
Task Description

I think it would be nice to have more flexibility for Prefix etc. option (not only the drop down with a given choice) and a remember function for all those fields like postfix and tolerance.

Why Remember Function:
If I use a postfix like <>” in the postfix field I’m only able to use it for this particular dimension type at this time. If I change the type (from Horizontal to vertical or what ever) I have always to repeat my postfix. The same with tolerances.

396QCAD (main)Feature RequestLowBlocks: moving blocks: show bounding boxAssigned
Task Description

Blocks: moving complex blocks with drag and drop should show bounding box as preview

455QCAD (main)Feature RequestLowlogical operations for polylinesAssigned
Task Description

A missing feature in my work are logical operations (combine, intersect, ..) for polylines

Draw some elements, select them, say combine. The result will be the outline of all elements.

503QCAD (main)Feature RequestLowConvert entities to points with a fixed distanceAssigned
Task Description

Select lines, arcs, ... and convert them to points along the lines, arcs, ... with a fixed distance.

See also forum at:

514QCAD (main)Feature RequestLowPunktpestimmung Intersection manual muss immer wieder n...Assigned
Task Description

Zeichnen einer Linie (Line two points) mit Punktbestimmung.
Wähle ich für die Punktbestimmung z.B. “End” bleibe ich in diesem Modus bis ich etwas anderes wähle. Gut ;-)

Wähle ich für die Punktbestimmung “Intersection manual” muss ich dies für jeden Punkt immer wieder neu anwählen. Schlecht :-(

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