I found Suse KB article about cleaning up the snapshot database of a managed cluster (https://www.suse.com/support/kb/doc/?id=000021272). Problem is, according to journalctl -u rke2-server it continues to clean up the old snapshots again and again, even though they cannot be found in the local snapshot directory anymore. Looking at the Rancher GUI they are still there. Obviously there is another list somewhere that is not cleaned up yet. ??? RKE2 is 1.28.10, Rancher 2.8.4