Output control randomly not working

[jbastian67]

Hello, I have some issues with the MQTT Extension.
I use it to control the volume of multiple zones and global playback.
The playback control works everytime, but the volume control randomly stops working, only after a restart of the extension it works again.

In the logs I found this:
received mqtt packet: topic=roon/FullHouse/outputs/Cuisine/volume/set, message=20
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** find output id for zone=FullHouse, output=Cuisine
*** output Cuisine not found in zone FullHouse!
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
received mqtt packet: topic=roon/FullHouse/outputs/Salon/volume/set, message=mute
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** find output id for zone=FullHouse, output=Salon
*** output Salon not found in zone FullHouse!
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
received mqtt packet: topic=roon/FullHouse/outputs/Salon/volume/set, message=mute
*** we know of zones: [ 'FullHouse', 'FullHouse + 2' ]
*** find output id for zone=FullHouse, output=Salon
*** output Salon not found in zone FullHouse!

After a restart of the extension it looks like that:
*** we know of zones: [ 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
*** we know of zones: [ 'FullHouse + 2' ]
*** zoneevent=zones_seek_changed
received mqtt packet: topic=roon/FullHouse/outputs/Cuisine/volume/set, message=20
*** we know of zones: [ 'FullHouse + 2' ]
*** find output id for zone=FullHouse + 2, output=Cuisine
-> REQUEST 9 com.roonlabs.transport:2/change_volume {"output_id":"170162dfe691ccc85358d8a350ecd3046da6","how":"absolute","value":20}

What I did:

• Extension reinstalled on the same Linux virtual machine
• Extension installed in a new docker extension manager
• roon server reinstalled without restoring an old backup
• reinstalled all RoPieee Endpoints
• Endpoints and Extension Manager migrated in a separate Subnet

Sometimes it works for days without any issue, sometimes it stops multiple times a day.

What I am doing wrong?