After the update,I keep getting a message that this Mac cannot connect to iCloud because of a username issue.
I had updated my Mac OS Monterey (several updates that I had forgotten to run).
The current one is 12.7.5.
After the updates, the Mac won't connect to iCloud and the Keychain ID won't work.
Won't let me update the keychain.
iMac 21.5″, macOS 12.7