[ceph-users] Umbrella 21.2.0 bad MGR memory leak

I've just upgraded a small production light-usage cephadm cluster from Tentacle to Umbrella. The active MGR now seems to be growing by about 1GB per hour though. I can't see anything wrong in the mgr logs. The only other sign of trouble is that a lot of metrics are not displaying in Grafana (mainly OSD-related I think - haven't checked it thoroughly yet). I don't know if that is related to the leak. I just had to fail the MGR to get some memory back. It immediately released about 2.5GB, but is still tracking up gently while in standby. Help... (Just adding a large amount of swap...) Thanks, Chris