Altitude loss but no RC3 out incrrement

Hello everyone! My plane was in cruise mode and unfortunately, it crashed. While reviewing the logs, I noticed that when the plane’s speed fell below the minimum required for fly-by-wire, the RC output 3 was not increasing. Does anyone have any idea what could have caused this issue?
https://drive.google.com/file/d/1Wv2lJ0E0cd8LZ1Thzo-S-7GFehOiA8_y/view?usp=sharing