Hi All, we currently have a bug in LayOut and macOS Catalina where using the File, Insert… will disable the Undo and Redo functions. Saving, closing then reopening the file will bring those functions back.
All available file types inserted via the File, Insert… pulldown are affected by this bug. These include: SketchUp models, all image types and dwg/dxf’s. The issue does not occur when using the Send to LayOut function from SketchUp or dragging and dropping the entity types straight into LayOut.
The only known workaround when using insert via the pulldown menu is to Insert, Save, close then reopen the file before working any further.
Sorry for the inconvenience.
Trent