Recently added RFXCOM device also starts existing devices


I recently added a KAKU/COCO plug to home assistant for a ventilator.

Everytime I enable it, another switch within my setup gets enabled as well.

I’ve deleted the last device several times and recreated it with a new code. But everytime some other switch gets enabled as well.

I looked at the diagnostics to check for duplicate rfx codes. But there wasn’t any.

I would like to know how to troubleshoot this issue and how to fix it.