Hi Stig,
Thank you for your report and I am sorry about the experience!
To understand you correctly, I made a small test file similar to what you described. To me, after open this file and migrated to ARCHICAD 23, the Option Sets I made (test) show up correctly. Is this the case here with your project?
https://graphisoft.sharefile.com/d-sf058d3090014c72b
If it is something else, I would be grateful if you are willing to share the ARCHICAD 22 file with us, so that I can test the process internally. Please reply either here within the post directly or through a PM and I will provide you a secure GRAPHISOFT link where you can upload your file to.
Thank you very much, and I look forward to hearing from you about this!
Best regards,
Minh
Minh Nguyen
Technical Support Engineer
GRAPHISOFT