AGi32 v19 can crash when attempting to import DWG files containing MText entities with consecutive line breaks.
Option 1: Edit the MText entities in AutoCAD to ensure there are not consecutive line breaks in any of the MText entities to be imported.
Option 2: Disable MText entities in the CAD import dialog in AGi32
This problem can occur in versions 19.1, 19.2 and 19.3 of AGi32. This will be fixed in the next version of AGi32.