P4ProPlus Controller Operating Temps

[thatobsidianguy]

I recently sent my P4ProPlus controller to DJI for service. (Original issue...It wouldn't find or connect to any wifi networks). They resolved the problem, but when I received the exchange/repaired unit (which looks like new), I noticed that the underside of the controller gets extremely warm after 15 minutes +/- of flight time. Flies great. Rock solid otherwise. We have an identical quad/controller at work, and I've never experienced the same issue on that unit. Anyone here have the same issue? DJI has approved another repair, but I've noticed that this issue "comes and goes", where I occasionally experience "normal" temps while flying...... Thoughts?