Sounds to me like a video card/driver issue.
Are your drivers up to date?
Am am no tech expert and I am not familiar with your Radeon card or if it is even suitable for Archicad.
You have that and an built-in card?
Archicad does not like those integrated cards all that much.
I am not familiar with Macs at all, but can you tell it somewhere in the settings to use the Radeon card only with Archicad?
If it is then maybe that card or its driver is not compatible.
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