Hi @m0hawk,
All I can think of is shutting thee system down with REISUO, rebooting and hoping it works.
See here: [HowTo] reboot / turn off your frozen computer: REISUB/REISUO.
Alternatively, you can boot with a Live ISO, enter a chroot environment, and check the logs for any errors:
journalctl --boot=-1 --priority=3
(Or that’s how I have it anyway.)