I noticed today there were some updates available, so I opted to get them. However since the update completed LibreELEC will only start in safe mode after a crash+reboot.
My crash logs are available here:
None of the following helped:
1) Restoring the default "profiles.xml"
2) Changing my language from en-gb to en-us
3) Restoring a complete backup from yesterday
Currently downgrading back to 9.0.2 and doing a full restore to see if that gets things going.
If you have further suggestions or require more information please let me know.
Edit: The downgrade+restore was successful. Boot was quick, and asked for my master password right away. All in and back to normal.
I guess that version 9.1+ are not stable yet as I had to specifically opt in for it?