I have a weird issue on only one of my APM2.5 boards where in alt hold, the copter will climb when I move forwards, and drop when I move backwards. This climb/drop happens as soon as input is given.
Is it possible that I have a bad board? I am having trouble interpreting the logs to tell what exactly is going on. I have a dataflash log with IMU logs enabled which shows the issue on a short flight today.
Running 3.1 RC5, but this has happened with the last few versions I have run.