Hi, I'm having trouble with my Crux35HD with Vista and the crazy4f411 AIO controller FRSKY.  It drops out of the sky after about 30 to 60 seconds of normal flying. My TX12 will give a warning of "telemetry lost" which occasionally recovers, but quickly faults again.  I am only less than 100 ft or less away. I have flashed the controller with several versions of betaflight, but the problem persists. The signal strength appears good until the warnings occur.  I have used several different 4s 650 lipo packs, but no improvement.  The antennas are dual and appear to be connected fine.  I also fine tuned the frequency settings, but again no change.  Also I have no problem flying my Moblite 6 and 7 also FRSKY with my TX12. I would appreciate any suggestions, thanks.