Hi,
I'm not aware of any "general" crash problem or bug with the latest Access updates.
Are all your clients on M365? All on the same (Current?) update channel?
No further characteristics for the crashes? Like doing sth in the app, having the app open for a defined time or such?
It's hard to say what to do next without knowing your application, environments etc. I would probably concentrate on finding sth with these 2:
all but 2 clients are having this problem
Are they on a different (slower) M365 update channel than the others?
Do they have different "components" in connection with your application than the others? Different frontend or backend system/version, other virus/malware protection, Windows version etc.
Servus
Karl