Only last assigned (Philips) switch is working

Hi, I recently encountered a very strange problem.If I assign a Philips switch to a light it works until I assign another switch to another light. Switch 1 is not working anymore. I already deleted the switches and re-added them - same behaviour.

I only see the last assigned button in the logs:
11:35:13:569 rule event /sensors/85/state/buttonevent: 1000 → 1002
11:35:13:572 rule event /sensors/85/state/lastupdated: 1714431521 → 1714431646

Home Assistant (2023.10.5) with most recent deCONZ add-on (GW 2.22.02).