P3D v4 Help with AutoPilot Issue

I have been trying to create an AP system for my uav project in prepar3d v4. The pitch of the aircraft is tied into the animation of the rear ducted fans. When I am moving forward though it is constantly making adjustments with max pitch angles back and forward. I tried to curve the max_pitch in the aircraft.cfg but that wasn't correcting this issue. Could someone explain to me how this issue can be resolved, or at this point could it be resolved? Video attached.


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