Hello All,
I'm having some issues, during the climb, cruise and descent phase for as long as the AP is engaged, FD on and an active vertical profile is engaged either VNAV, FLCH or VS. The AP commands abrupt unnecessary inputs in pitch, this causes a fluctuation of +- 1000ft in the cruise, changes of upton 2000fpm in the climb and descent. It's basically, constantly snaking.
I've tried new XPIUPC a full reinstall and I'm running 1.33 with latest Xplane.
Any ideas?
EDIT: CWS is not active and joystick is calibrated and centered.