This ticket is a cross post. It is already posted in LibreCAD issues: https://github.com/LibreCAD/LibreCAD/issues/1161.
This bug is indeed caused by LibreCAD or more exactly by libdxfrw, the DXF/DWG library it uses. DWG support in libdxfrw is very rudimentary and therefor a warning message appear when opening a DWG file in LibreCAD. This warning states, that this could happen. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853707 Title: Whole system stopped responding because of single program's fault - no way out, had to force power off To manage notifications about this bug go to: https://bugs.launchpad.net/librecad-dev/+bug/1853707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
