Ok so we have a very weird issue here in my org and I wanted to see if anyone else has ever run into this. On some of our late-2016 and mid-2017 15" Pros, users are having login issues post Monterey upgrade (12.1 and 12,2). When they attempt to login to their account it accepts their password but then just sits there with the progress bar and never logs in. Sometimes the account will let you in, but the users have no menu bar, extremely limited access to the keyboard, and it just never really logs in all the way. But you can use the keyboard shortcut to logout and then log back in with no issues. So given these experiences and after troubleshooting further, we have pinpointed that this issue is with FileVault. We can also go through a password reset with the recovery key, but never change their password, and the users can login with no problem; they can also login fine if we turn off FV and decrypt the drive. But then as soon as we turn FV on again and the drive encrypts the issue is back after the next reboot. We have almost 40 of our 2018 and newer MacBook Pros on Monterey with no issues at all but out of the 16 of the 2016/17 models we have had 6 experience this...Its scary because 200 of our Macs are one of these 2 models so we paused our upgrade rollout until we can figure this out.
We also have a ticket open and are working on this with Apple but I figured I would throw this out here in case anyone else has run into this. I am waiting for their support to get back to me with more troubleshooting. Anyone have any ideas of stuff to try while I wait to hear back from them? So far they've had us verify that the FV/user password are synced, and that the user has a secure token and its enabled for their account.
