While making my map, I made a trigger that transmitted on a channel “A” when receiving on channel “B.” Afterward, I deleted this trigger. The problem I keep having is each time something transmits on “B,” it also transmits on “A” even though the trigger is deleted. I call these phantom Channels.
Does anyone know how to fix this? 
If even one prop of device has the channel in the settings, it will always stay. To delete a channel completely, you need to take it away from all the parts that have it.
I’m unable to recreate this glitch. I had a lifecycle that listened for game start that would send on channel A that would trigger a trigger and the trigger would send on channel B, and then the game would end, then deleted the trigger and the game didn’t end.
Does reloading fix the issue? Restarting your device?
But here should be the explanation if you still have the problem after refreshing/restarting: