Updated to TrueNAS-13.0-U4, Qbittorrent jail died, anyone else?

[diskdiddler]

Rolled over to the new release 5 days ago and only just tried qbittorrent and I see the networking for her has died.
jail can't ping truenas, truenas can't ping jail.

Not a BSD guru, so not sure what's gone wrong. Just curious if this hit anyone else?
Syncthing jail is fine.

I'll fix it or replace it, but a bit of a shame. I switched back to a jail due to a very odd very very bad smb performance issue when it was hosted on another machine, writing over smb.

 

[diskdiddler]

Ok she's come good, restart, stop and start the jail, no dice, reboot the entire NAS and she's back.
Phew.