I was testing ArduPlane 4.4.0-dev (commit 26b4b0e) and found that my RC receiver no longer works. I am using a FrSky R-XSR connected via SBUS to a Matek H743-WING. I also use OpenTX passthrough telemetry over S.Port, which still works. Reverting back to 4.3.5 fixes the issue, ruling out any coincidental hardware failure.
Here is a log with LOG_DISARMED in case it is useful: https://drive.google.com/file/d/1EE5np4jL_r0yqr3wuIe5R9zGTnH2KyYe/view?usp=share_link