Downgrade from 4.02 to 3.7.2
Eureka ! (greek) , mea maxima culpa (latin) I made a very very stupid mistake, I assign a channel to rudder gain, I "forgot" this channel (that was at 0%) and try to play with rudder common gain with of course no result ! The reason why I didn't take care so much to this channel is that I fly indoor all this winter with a OMP M2 evo with OFS3 where rudder gain channel at 0% mean stabilization mode (over 50% : heading lock). I put now a reminder in my Jeti transmitter to put rudder gain channel at 50% when I switch it on. Sorry for the little time you spent on this issue. A lesson for me when changing from a "system" to another (OFS3 in that case)