@elfege I found my most recent thread with updated instructions here: Hub stuck initializing at 15% w/ blue light - #2 by jtp10181
Instructions:
Use the diagnostic tool: Hubitat Diagnostic Tool | Hubitat Documentation
Click Download backups > download all your backups to your PC
Do a soft reset, then restore from your newest downloaded backup. (Restoring a backup does not change the firmware version, you can restore any backup to any firmware, does not need to match).
If still hanging up, try your next newest backup, etc... try all the backups newest to oldest to see if one will work.
Often times going back one or two backups is what fixes it.
If none of that works, try using Restore Previous Version to roll back to a prior major firmware version, then try the above again.
Does this solve the issue or are you saying that even after fixing it, the next reboot it gets stuck again?