Ikea Timmerflotte (Matter Thread) unavailable after update

Hello,

I updated home assistant today from 2026.2.1 to 2026.2.2 and the OS from 17.0 to 17.1

After the update the system cam up without problems but I lost the connection to 3 of my 8 Timmerflotte temperature sensors.

I switched back to an older backup and the sensors were running again without any problem.

Any known issue with the latest version?

Edit:
The sensors are directly linked to Apple Homekit and as a second instance in Home Assistant.