proxmox ceph-mon crash ceph_time

Hi, for the 2nd time in only a few days we got a message about a crashed ceph-mon process: root@sv18002:~# ceph crash info 2020-03-09_07:11:48.755203Z_8747897c-939b-4012-9c50-f4e266562f28 { "os_version_id": "10", "assert_condition": "z >= signedspan::zero()", "utsname_release"...