Dear Yvonne,
Thank you for the information!
What we are still missing in previous investigations is the method to reproduce the issue. Usually, we only see the result (the placed drawing has corrupted settings) but we do not know how it could reach such state. Usually, replacing the drawing should help, therefore I am interested in why in your case, sometimes it doesn't.
If you happen to find out how to reproduce it, please let us know, it would be a big help to the development team! If replacing the drawing doesn't help, I would like to get the file, maybe it could be another issue.
Thank you very much!
Best regards,
Minh
Minh Nguyen
Technical Support Engineer
GRAPHISOFT