[BUG] "The entity does not have a unique id" HA error

[eshroom]

Faikin hardware
Amazon purchase 12/23

Daikin hardware
X50 connection to FXNQ series

Describe the bug
Have been getting intermittent Home Assistant error "The entity does not have a unique id" - "Unknown error" - symptom is while mode and temperature are selectable, fan speed is not and I get this error. But then it semingly resolves itself.

To Reproduce
Steps to reproduce the behavior:
It really appears and disappears.

Expected behavior
All functions, incluiding fan speed to work.

Additional context
All functions works fine within the Faikin control page, this error only presents when controlling via MQTT in Home Assistant

[revk]

This may need someone that knows HA better than I.

I'll have a look though.

[revk]

I am not seeing obvious duplicates - does the debug information say what ID is not unique?