Hello,
I have a problem with MySensors and HomeAssistant. I added a sketch that supports relays on Arduino Mega. Everything worked very well. Then after changing the USB port, it started reporting warnings. Everything still works, but after each change of the state of the relay, there are more warnings in the logs.

Warning 1:
Error decoding message from gateway, bad data received: Incoming change for sensor:1, New status: 1
Error decoding message from gateway, bad data received: Incoming change for sensor:1, New status: 0

Warning 2:
Not a valid message: not enough values to unpack (expected 5, got 0)