I used ceph-salt to deploy bootstrap services on a master node. then used cephadm
to spin-up mons on node{1..3} with cephadm orch apply mon node1,node2,node3. Now, the master's ceph.conf is outdated(still pointing to the initial bootstrap mon), hence any ceph command will hang as it's relying on the ceph.conf to retrieve the mon addresses.

There is an cephadm tracker issue for a related issue already: https://tracker.ceph.com/issues/44792