"RC Receiver" error showing in QGC with PX4 v1.13

Using a Pixhawk 6x with main developer branch Fixed formatting to pass check_format · PX4/PX4-Autopilot@c5f72fb · GitHub

Also seen on a Pixracer running same firmware (v1.13beta). both using frsky transmitters/receivers attached through SBUS input to pixhawk/racer (although each were using different transmitter and receiver pairs)

The error did not seem to affect any normal operation (could still calibrate RC, arm, move servos, spin props, etc).

Any idea if this is an issue with the new firmware and if not what it means and how to eliminate it (just for peace of mind)