SOLVED Replication fails on snapshot that is already replicated?

[keboose]

I have replication tasks set up for most of my storage pool to another FreeNas machine, all set up in "Legacy Mode" since they were all made pre-11.3.

The replication task for my jails always (for the last two weeks or so) fails with the following error:

Code:

Failed: [tank]/iocage/releases/11.2-RELEASE/root (auto-20200125.0746-2m->unifi)

'unifi' in this case is the name of the jail for my Ubiquity Unifi controller. I checked the snapshots on both machines, and they both have identical sets of snapshots for the 'unifi' jail, as well as the snapshots in the error: iocage/releases/11.2-RELEASE/root@auto-20200125.0746-2m and iocage/releases/11.2-RELEASE/root@unifi.

How can I find out what is going on to cause this error, and how can I fix it?

 

[keboose]

Naturally, the solution was easier than I anticipated: I simply deleted the two snapshots in question on the remote NAS. The next replication task completed successfully, and the snapshots appeared on the the remote NAS again. So far no more errors, but I'll update again if this issue returns.