Aqara plugs are known to interact with IKEA remotes (see this post, for example), even if they are not in the same network (so, theoretically, it could be a remote that your neighbour uses). I don’t think there’s a solution for fixing that with Homey (other Zigbee controllers can “unsubscribe” the plugs from the Zigbee group that they, by default, listen on for messages).
