The AI Pilot does have some issues going back for some time. I would imagine it probably won’t be fixed until the work being done by WT on default aircraft. That’s my guess. Until then, I’d bring a parachute if you use it. 
The bug topic is here:
https://forums.flightsimulator.com/t/ai-control-aircraft-ai-pilot-is-broken-no-longer-works-as-expect/291627