I was able to inject the tmpfile on PVE-1 and PVE-Witness (I had to delete /var/lib/ceph/mon/ceph-PVE-Witness/store.db/LOCK) but it completed for those two.
However for PVE-2, /var/lib/ceph/mon/ceph-PVE-2/store.db doesn't exist, and I didn't delete it...
I created the directories, and it still...