I am having the same issue. Any ideas how to revert back to 2.4.12?
Also, the urbackup process seems to run wild and cause the FREENAS server to run out of memory.
Seeing errors like this in the logs,
2021-05-06 22:18:59: WARNING: Error: Unknown action [login]
2021-05-06 22:19:08: WARNING: Error: Unknown action [login]
2021-05-06 22:20:04: WARNING: Error: Unknown action [login]