i have a sort of similar issue i have 6 riing quads and 2 rgb controllers. they were all working in unison no issues for about a week. my first controller switches are default and my 2nd are set to 6. the other day i got a warning that there was an issue with controller 6. i only have 1 fan plugged in. but now my controller 1 isnt recognized the fans and rgb are working i just cant address them or sync them with the 2nd controller.