No jail network interfaces after system restart

[NAScent]

After some network changes and moving my server, all of my jails have no networking.

For example:

iocage restart plex
* Stopping plex
+ Executing prestop OK
+ Stopping services OK
+ Tearing down VNET FAILED
ifconfig: interface vnet0.16 does not exist
+ Removing devfs_ruleset: 6 OK
+ Removing jail process OK
+ Executing poststop OK
No default gateway found for ipv6.
* Starting plex
+ Started OK
+ Using devfs_ruleset: 6
No default interface found

The system has been shutdown before and the jails always come back up without any problem.

How do I debug this or where should I look?