ZHA device raising a lot of "Unknown cluster command 42 b" warnings

Hardware
1

I have two Apex Smart Plugs (Apex Smart Plug - Gjør dine enheter smartere | Eva - Smarthus gjort enkelt) that are giving the following warnings in my logs

2022-07-02 19:05:49 WARNING (MainThread) [zigpy.zcl] [0xF63C:1:0xfeed] Unknown cluster command 42 b''
2022-07-02 19:05:55 WARNING (MainThread) [zigpy.zcl] [0x3363:1:0xfeed] Unknown cluster command 42 b''

I’ve confirmed that 0xF63C and 0x3363 are the id’s of the two smart plugs.

They are connected via a Conbee II and ZHA

I’ve tried to reconfigure the devices, but that fails with the message “The device reconfiguration failed. Additional information may be available in the logs”.

Sometimes I get the following warning in the logs when I try to reconfigure:

2022-07-03 12:19:29 WARNING (MainThread) [homeassistant.components.zha.core.channels.base] [0xF63C:1:0x1000]: Couldn't get list of groups: [0xf63c:1:0x1000]: Message send failure

I’ve also recently removed and re-added the device to ZHA, but the same warnings persist.

I have an identical plug connected via Zigbee2MQTT that is not giving the same warnings, although they just might not be exposed via Z2M.

Any idea what the issue could be?

2

I’m seeing the same thing. 10k+ logs with this Warning
Also using ZHA and same plugs.

3

Same issue. I have 4 Apex Smart Plugs connected to ZHA via a SONOFF Zigbee 3.0 USB Dongle Plus-E.

All 4 of the Apex plugs are giving me these warnings.

4

Same here, sonoff3.0 as well

5

I am also seeing the same issue with zha over Sonoff 3.0 with Apex plugs.
Is this an issue with the zha Quirk for the Apex plugs?

6

Any solution to this? ZHA with Sonoff 3.0 and Apex plug. From my side, Apex is the preferred plug when it comes to stability and power consumption tracking of all plugs I’ve tested.