same here
Version: 3.3.4 (snap install)

2023-11-14 15:06:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas01:pid=1959698' authenticated.
2023-11-14 15:06:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas01:pid=1959698' authenticated.
2023-11-14 15:06:25 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas01:pid=1959698) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:06:26 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas01:pid=1959698) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:06:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=41030, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.2', port=5250, flowInfo=0, scopeID=0))
2023-11-14 15:06:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=41036, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.2', port=5250, flowInfo=0, scopeID=0))
2023-11-14 15:06:55 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas01:pid=1959698' authenticated.
2023-11-14 15:06:55 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas01:pid=1959698' authenticated.
2023-11-14 15:06:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas01:pid=1959698) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:06:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas01:pid=1959698) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:07:05 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=37338, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:05 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=37348, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:25 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=34250, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:25 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=34252, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659391' authenticated.
2023-11-14 15:07:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659391' authenticated.
2023-11-14 15:07:25 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659391) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:07:26 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659391) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:07:35 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=50994, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:35 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=51010, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=40464, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.14.3.3', port=40472, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.14.3.4', port=5253, flowInfo=0, scopeID=0))
2023-11-14 15:07:55 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659391' authenticated.
2023-11-14 15:07:55 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659391' authenticated.
2023-11-14 15:07:55 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659391) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:07:56 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659391) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:08:05 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=51980, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:05 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=51982, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:25 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=54688, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:25 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=54698, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659392' authenticated.
2023-11-14 15:08:25 provisioningserver.rpc.clusterservice: [info] Event-loop 'maas03:pid=1659392' authenticated.
2023-11-14 15:08:25 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659392) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:08:25 provisioningserver.rpc.clusterservice: [info] Rack controller 'ad3c78' registered (via maas03:pid=1659392) with MAAS version 3.3.4-13189-g.f88272d1e.
2023-11-14 15:08:35 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=47152, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:35 ClusterClient,client: [info] ClusterClient connection lost (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=47168, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=42440, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))
2023-11-14 15:08:55 Uninitialized: [info] ClusterClient connection established (HOST:IPv6Address(type='TCP', host='::ffff:10.15.2.3', port=42448, flowInfo=0, scopeID=0) PEER:IPv6Address(type='TCP', host='::ffff:10.15.2.4', port=5252, flowInfo=0, scopeID=0))