I am currently running OS Monterey 12.3.1 as well and have been dealing with Archicad crashing for about the past 8 months ever since I got my new iMac. Initially it was AC24 crashing, so I installed AC25 but that didn't fix the problem. Each update ...

I've dealt with this same issue, happens randomly on different projects. Hoping there's a solution to this? Fortunately/Unfortunately for many Archicad glitches, I can clear my cache, restart the program, reopen the project, and the glitch goes away....