Files saved from LC won't open in Autodesk products such as DWG TrueView 2020.
Format 2007/2004/2000/R14 gives this error (different line number):
The following error was encountered while reading
in PLOTSETTINGS starting at line 12430:
Class separator for class AcDbPlotSettings expected
Invalid or incomplete DXF input -- drawing discarded.
Format R12 gives this error:
Unknown group 49 for table on line 1420.
Invalid or incomplete DXF input -- drawing discarded.
Same file can be imported to FreeCAD or DXF2GCODE just fine.
This bug is moved to https://github.com/LibreCAD/LibreCAD/issues/1330
This was fixed with pull request 1283