I have spent 6 or 7 hours on the phone or in texts with Apple Support trying to fix this problem, no luck. They don’t know or have any solution. I have restarted in safe mode, rescue mode, I have totally erased my computer twice and started over, all to no avail. I have given Apple access while we tried to find a solution… nada. In the end I was left with no answer, no hope other than wait and see, and a wounded, semi-functional iMac computer (listed a Sonoma compatible, by the way) for the last two weeks. Having owned 9 macs since 1986 (512ke), this is an unprecedented problem. Support is evidently still searching for an answer on this one.