Snapshot replication lifetime doesn't work

[randomizedname]

Hi,
I have two TrueNAS machines, both running 12.0-U4. First one has configured a periodic snapshot task and also a replication task of these snapshots to the second TrueNAS server. The problem is snapshot lifetime setting configured in the snapshot task doesn't work. According to my settings (see attached image) any snapshots older than 2 hours should be deleted, but they aren't.

 

[randomizedname]

Edit: I submitted the bug here: https://jira.ixsystems.com/browse/NAS-111646 . As a workaround I wrote a bash script which allows to purge N oldest snapshots: https://github.com/KrisTheGreat/snapshot_purge/blob/master/snapshot_purge.sh