Glad you got it to work
Went back and looked at my system where I am doing this.
I am transmitting the links from US-240 switches, so the "Report level" option is not available and hence why I wasn't seeing the collisions you were.
Good review for me, thanks.
The HAI sends status requests to all units in a room whenever one of the 6 room links is transmitted, but it doesn't send the requests when an individual unit makes a local change.
That is why the default configuration is fro the switches to report their status upon switch activation.
Also good review to me that the unit transmitting the 241/242 links is how the HAI tells that that unit is switching on or off, to be used in a trigger.