I ran into this again but this time with juju 3.1.2: $ juju deploy ./lxd-cloud-cell_ubuntu-22.04-amd64.charm cell-a --resource snap=./lxd-cloud-cell_0+git.6c40e0c_amd64.snap --config name=foo -n 3 Located local charm "lxd-cloud-cell", revision 34 Deploying "cell-a" from local charm "lxd-cloud-cell", revision 34 on ubuntu@22.04/stable $ juju debug-log --color --level DEBUG --replay | grep -E 'cell-a/(2[89]|30)\.' | grep event unit-cell-a-28: 20:31:59 DEBUG unit.cell-a/28.juju-log Emitting Juju event install. unit-cell-a-29: 20:31:59 DEBUG unit.cell-a/29.juju-log Emitting Juju event install. unit-cell-a-30: 20:31:59 DEBUG unit.cell-a/30.juju-log Emitting Juju event install. unit-cell-a-29: 20:32:02 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_created. unit-cell-a-28: 20:32:02 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_created. unit-cell-a-30: 20:32:02 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_created. unit-cell-a-29: 20:32:02 DEBUG unit.cell-a/29.juju-log Emitting Juju event leader_settings_changed. unit-cell-a-28: 20:32:02 DEBUG unit.cell-a/28.juju-log Emitting Juju event leader_settings_changed. unit-cell-a-30: 20:32:03 DEBUG unit.cell-a/30.juju-log Emitting Juju event leader_settings_changed. unit-cell-a-29: 20:32:03 DEBUG unit.cell-a/29.juju-log Emitting Juju event config_changed. unit-cell-a-28: 20:32:03 DEBUG unit.cell-a/28.juju-log Emitting Juju event config_changed. unit-cell-a-30: 20:32:03 DEBUG unit.cell-a/30.juju-log Emitting Juju event config_changed. unit-cell-a-29: 20:32:06 DEBUG unit.cell-a/29.juju-log Emitting Juju event start. unit-cell-a-28: 20:32:06 DEBUG unit.cell-a/28.juju-log Emitting Juju event start. unit-cell-a-29: 20:32:07 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-28: 20:32:07 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-30: 20:32:07 DEBUG unit.cell-a/30.juju-log Emitting Juju event start. unit-cell-a-29: 20:32:07 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-28: 20:32:07 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-30: 20:32:07 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-30: 20:32:07 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-29: 20:32:08 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-28: 20:32:08 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-29: 20:32:08 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-28: 20:32:08 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-30: 20:32:08 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_joined. unit-cell-a-30: 20:32:09 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-29: 20:32:09 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-28: 20:32:09 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-29: 20:32:09 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-28: 20:32:10 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-30: 20:32:10 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-29: 20:32:10 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-30: 20:32:10 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_changed. unit-cell-a-28: 20:32:13 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-30: 20:32:13 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-29: 20:32:13 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-30: 20:32:14 DEBUG unit.cell-a/30.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-28: 20:32:14 DEBUG unit.cell-a/28.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-29: 20:32:14 DEBUG unit.cell-a/29.juju-log cluster:44: Emitting Juju event cluster_relation_departed. unit-cell-a-30: 20:32:32 DEBUG unit.cell-a/30.juju-log Emitting Juju event leader_elected. So in the above, we see the peer relation named "cluster" was departed for some reason and it is now showing as "joining": $ juju status --relations Model Controller Cloud/Region Version SLA Timestamp test overlord juju-lxd/default 3.1.2 unsupported 20:41:42-04:00 App Version Status Scale Charm Channel Rev Exposed Message cell-a active 3 lxd-cloud-cell 34 no region-a active 3 lxd-cloud-region 12 no Unit Workload Agent Machine Public address Ports Message cell-a/28 active idle 64 10.184.166.81 cell-a/29 active idle 65 10.184.166.26 cell-a/30* active idle 66 10.184.166.192 region-a/6* active idle 61 10.184.166.100 region-a/7 active idle 62 10.184.166.54 region-a/8 active idle 63 10.184.166.254 Machine State Address Inst id Base AZ Message 61 started 10.184.166.100 juju-abb86b-61 ubuntu@22.04 Running 62 started 10.184.166.54 juju-abb86b-62 ubuntu@22.04 Running 63 started 10.184.166.254 juju-abb86b-63 ubuntu@22.04 Running 64 started 10.184.166.81 juju-abb86b-64 ubuntu@22.04 Running 65 started 10.184.166.26 juju-abb86b-65 ubuntu@22.04 Running 66 started 10.184.166.192 juju-abb86b-66 ubuntu@22.04 Running Relation provider Requirer Interface Type Message cell-a:cluster cell-a:cluster cell-cluster peer joining region-a:cluster region-a:cluster region-cluster peer I'm attaching new logs, charm and snap just in case. FYI, this is the 3rd times this happens to me after probably a couple hundred deployments (the rev # cannot be trusted as I went through multiple models/contollers). So not a frequent thing but one that really wreak things :/