I am having the same issue but with all aircraft I have tried to fly on AP; TBM, C172 and A320. Have confirmed modern is set and co pilot is not in control. The aircraft fly on full rudder deflection, and up to 40 degrees of bank, when straight and level (turning is another matter altogether). I have tried changing realism values and this also does not help. When disengaged, the rudder snaps back to neutral. At this point I am pulling my hair out!!! Any one have any other ideas? I will also try to post this in the zendesk. Thanks.