[ceph-users] cephfs - max snapshot limit?

Hello, we are running a 3-node ceph cluster with version 17.2.6. For CephFS snapshots we have configured the following snap schedule with retention: /PATH 2h 72h15d6m But we observed that max 50 snapshot are preserved. If a new snapshot is created the oldest 51st is deleted. Is there a limit for maximum cephfs snapshots or maybe this is a bug? I have found the setting "mds_max_snaps_per_dir" which is 100 by default but I think this is not related to my problem? Thanks, Tobias