Windows closes LibreCAD after about 5 minutes - Not Working

PC has windows 7 home edition.  Using Version Master; SCM revision 2.0.8 compiler GNU GCC 4.9.1 Qt version 5.4.1, compiled Aug 14, 2015.
Downloaded / installed 10/9/15.

Just drawing, suddenly get windows pop-up that says LibreCAD not working correctly, checking for solution.  Have to close the program to free up the computer.

Thanks !

Try to remember the last thing you were doing the next time it happens.
For example, what tool you were using and/or what button you pressed.

Also, save any new file directly after creating it, and set the auto save time to something lower than 5.
Application preferences → Defaults

Hopefully you will lose less work that way.

OK, I was using two functions, trim and line offset, and then the Undo function.  Tonight I drew several offset lines, then realized I had the wrong value.  Used Undo about 5 times.  Then, the next new offset line, BOOM, LibreCAD not working correctly, windows closes the program.

Hope this gives enough for troubleshooting.

please describe as clear and detailed as possible, for example:

0, start LC;
1, Draw->Line->2 Points;
2, select 0,0 and 1,1;
...
n, Edit->Undo

Expected result: undo one step
Actual result: LC crashes

TrainGuy wrote

OK, I was using two functions, trim and line offset, and then the Undo function.  Tonight I drew several offset lines, then realized I had the wrong value.  Used Undo about 5 times.  Then, the next new offset line, BOOM, LibreCAD not working correctly, windows closes the program.

Hope this gives enough for troubleshooting.

I have had this happen a few times.
I was unable to remember the steps,
but offset and undo were involved.

I just remembered trim was also involved.
It crashed twice when creating:
fullscreen.dxf

I've used LC for about 17 minutes, with multiple closures.
They all happen after

n Draw rectangle
n+1 Draw parallel line to one side
n+2 Draw parallel line to perpendicular side
n+3 Trim one part of line (select incorrect one, want to undo the incorrect trim)
n+4 Undo (sorry, the script disappears when LC crashes, so I can't replicate exactly)
n+5 Trim

expected result - line is trimmed
actual result - LC crashes.

I hope this is detailed enough for you to try to replicate what happens.
How can I save the script for sharing ?

Good job.

Excluded offset from the sequence.

I will see whether I can find a reproducible sequence here

TrainGuy:

Thanks a lot for the sequence, and I was able to reproduce this bug, the fix is in 2.0 and master branch:

https://github.com/LibreCAD/LibreCAD/commit/06a932f4242c12e71a06b3eca12fdd35654c9347

I feel there's another crashing bug with undo, please help testing.

We should release 2.0.9 soon, with this fix.

TrainGuy wrote

I've used LC for about 17 minutes, with multiple closures.
They all happen after

n Draw rectangle
n+1 Draw parallel line to one side
n+2 Draw parallel line to perpendicular side
n+3 Trim one part of line (select incorrect one, want to undo the incorrect trim)
n+4 Undo (sorry, the script disappears when LC crashes, so I can't replicate exactly)
n+5 Trim

expected result - line is trimmed
actual result - LC crashes.

I hope this is detailed enough for you to try to replicate what happens.
How can I save the script for sharing ?