Replication not showing snapshots, help

the field for naming schema I do not see anymore in the replication wizard.

I just set up a dataset and ran a snapshot with the naming schema:

auto-hourly-%Y-%m-%d_%H-%M

below is the error i have seen all day with my snapshots.

now if i just leave these generic auto-%Y-%m-%d_%H-%M they will show.

I have always used syncthing in the past, but have procured another truenas and have been trying out the replication with very little fun.

Any suggestions would be great.