Thank you. Changing UART does not resolve the issue.
Seems to be an issue with using PWM 5 as DSHOT - Telemetry works if I move from PWM 5 to PWM 4.
A semi solution but does not help my use case.
I have 4 servos connected to PWM 1-4
I have 1 dshot ESC connected to PWM 5
If I leave the telem connected to serial 0 (RX1) and simply move the DShot connector from PWM 5 to PWM 4 the telemetry starts working.
I am aware that due to timing issues I need to seperate PWM servos and Dshot as described above so I need to use PWM 5.
Any idea why plugging DSHOT into PWM 5 causes the telemetry stream to stop working, is there any fix?