Never ending spurious '[ERR] CMGR: Unknown connid' messages

[dunkfan]

My node 0.18.3 is continuously complaining about unknown connections
Immediately before this [ERR] there is a [INF] SRVR: Removing conn req: message or 2 messages for the clearnet and tor address of the channel.
These repeat at regular intervals (multiple minutes in between)
If I use a lncli disconnect with the pubkey, the connection is immediately restored and the errors disappear for a prolonged period.
Anyone know what is going on here? It seems like this is killing off transactions from going through the corresponding channels but I can't be sure.