I have sent 2 emails to Fatshark but haven't heard back from them yet but it's only been a few days. My problem is I'm losing video and getting a dark grey screen on several quads. It's like it switching to rx0 because when I switch to rx0 then back to rx1 I regain video. I'm using a laforge module with diversity and I've checked to make sure the connections are solid and they are. I've also tried all kinds of channels all with the same issue. Someone on another forum suggested overheating but I don't know how or where. They are only 2 months old and have worked fine in the past. I also noticed the fan stopped working due to a bad 2s balance connector which I'll be replacing this week. I highly the doubt the 2 are related but figured I would bring that up as well.