This has been said thousands of times in the forum, and I will keep saying this thousand of times more. Please do the following housekeeping tasks first:
- Set your flight model to Modern, don’t use legacy.
- Set all your assists to Hard/True to Life. Assists interferes with the autopilot systems. (Taxi Ribbon is an acceptable exception)
- AI Copilot control should be OFF at all times. This is because AI copilot fights the autopilot. They’re only good for ATC radio handling, and checklist assists if you’re into that.
- Set deadzones to all your control axis. Micro inputs from your controls, no matter how small will override the autopilot, causing them to drive. Adding at least 5-10% of deadzone to all your Pitch, Ailerons, and Yaw controls will make these micro-inputs being ignored thus not overriding the autopilot.