Flight test -Altitude mode - strange behaviour

🧪 Flight Testing & Log Analysis
1

Hi
I try to fly in ALT mode and after some time copter start climbing up, but I have throttle all way down.
It is very visible in logs LPSP.Z star rising around 11:44:52
http://logs.uaventure.com/view/HAKgCvC5ryJnvNHeumwxsY#Local_Z_PLOT
but throttle channel RC.C0 is at same time down.

Before flight a saw ATLCTR rejected error, but I way until is mode switch ro ALTCTR OK. What can cause this rejection?

Flight with pixracer from AUAV and stable PX4 FW

Thanks for any advice what can happens
David

2

Hello. Have you found the problem? I met the same strange behavior recently. Thank you