This past week I have had three users all that happen to be on M1 MacBook Air 2020 devices, when logging in it gets stuck on the progress bar after first log in. I am guessing it is in the unlock of the FileVault stage. I was able to get user to log in with Safe Mode, then remote in but was unable to disable FileVault with terminal or remove the user because the local user is the only FileVault user. One of the three users machine eventually made it through the FileVault stage after about 20 reboots.
All devices are on Mac OS 12.3.1 and have plenty of available storage.
What is happening and what can be done to fix the machines that this happens too and prevent it from happening again?