Hello,
Thank you very much for your report and I am very sorry about the issue!
Unfortunately, I was unable to reproduce the same problem as you mentioned, using Archicad 24 INT 4018. First, I would like to make sure that the latest update build is installed (currently 4018 for Archicad 24). Furthermore, please let me know which language version you are using since probably it could be a library bug.
Looking forward to hearing from you!
Best regards,
Minh
Minh Nguyen
Technical Support Engineer
GRAPHISOFT