RC will go blank even when drone is very close. Never know when it will happen.
Drone has returned home each time .But very scary to suddenly lose contact with drone . New Scandisk Exctreme pro SD card in RC and Mavic 3
More on my Pro Controller
I turned off video cache in settings and now my controller is doing great .Have tested it with same Mavic 3 and worked great on 5 flights of over 35 mins each. Maybe this will help someone with same problem.