After updating my SG2008 switch firmware to v4.20.17 I am seeing a huge number of warning messages in the console log of my Omada Controller.

I have tried restarting both the switch and the controller (v6.1.0.19) but still getting thousands of messages in the logs!

The messages, repeated a couple of times every minute, are: 

2026-02-01T13:41:10.454824000Z 02-01-2026 13:41:10.453 WARN [client-inform-work-group-6] [] c.t.s.o.c.p.e.a(): DMP Client: Failed to build client monitor message Proto2MonitorMessage[header=mac: "`\244\267\244\305X"

2026-02-01T13:41:10.454966000Z version: "1.0"

2026-02-01T13:41:10.455019000Z path: "/o/236041a4e7b4f82822dbdbf69baaa6b9/s/6226e0062d0b6a84231b456d"

2026-02-01T13:41:10.455052000Z msgType: MSG_COMPONENT_LIST

2026-02-01T13:41:10.455109000Z devType: DEV_SWITCH

2026-02-01T13:41:10.455140000Z seq: 18

2026-02-01T13:41:10.455183000Z epochMs: 1769924470452

2026-02-01T13:41:10.455214000Z token: -5858356698248339916
2026-02-01T13:41:10.455250000Z contentType: "plain/protobuf2"
2026-02-01T13:41:10.455290000Z , componentMap={16842753=type: 16842753
2026-02-01T13:41:10.455330000Z data: "\022\fswitch02.lan"
2026-02-01T13:41:10.455372000Z }]

Any ideas?