I have a problem with a believer with matek f405 wing that has latest arduplane fw. I launched it in TakeOff mode successfully, after that I switched to FBWA and flew very well. I made also the autotune for 20 or so minutes with no problem. But when I switched to RTL or AUTO is pitching down and rolls just a little. I checked the control surfaces, TX, everything, everything looks good, but I know is something that I miss.
Does anyone have any idea?