Welcome to Archicad and the forum.
Please try to post your question in a relevant section rather than the first one - read the section descriptions.
I have moved this post.
What are your machine specs?
Have you checked to see that your Archicad is up to date (go to the HELP menu and 'check for updates').
Barry
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11