This looks like some kind of corruption with your graphics card. It is not an ArchiCAD issue.
Please post your hardware platform info, including OS, processor speed, memory, Graphics card and amount of memory on the card. Although, first, you should make sure that you have the most current driver for your card.
Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sonoma 14.7.1, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB