SSH connection works but no replication

I have 2 systems running the just released TrueNAS CORE (they were previously on 11.3-U5 and this problem still existed). They are in 2 physical locations and I previously had replication setup. About a month ago the motherboard died (bit by the ASROCK BMC chip problem) so I replaced the motherboard in the target system just fine, no problems there.

Trying to revive the replication task though has become head scratching. It seems the replication engine has undergone quite a bit of upgrades...

SSH connection works but no replication