I have a quad with a BFF4, R-XSR & an HV Tramp. I had telemetry at one point so I know it' set up correctly but the next weekend I went to fly I had no rssi or voltage telemetry. My osd is working but all the numbers are at 0. Also I had it where the Foxeer Monster osd was off but now it' overlaid on the BF osd and the voltage on that is reading wrong as well. I can' seem to get that osd off. Could this be the problem that 2 osd's are trying to run. I know I need to check the solder points on the r-xr which I will do this weekend. I just wanted to know if anyone had any other ideas I can use to try and troubleshoot this problem? Thx for any help everyone.