Yes, I had some mods in the beginning like the one you mentioned @mastrov, however it did not help, I removed all mods to check if issue persist, and unfortunately I still have a problem.
Heading, altitude hold works fine but NAV does not. I’ve read other posts people having problems with autopilot but their plane goes straight forward, not following the path but continues going forward. My plane is immediately doing hard right turn and it stays like that doing circles.
I use keyboard only for controlling the aircraft. It does not seem like a global issue, since others have working autopilot. I was thinking about reinstalling the game but it takes forever with this amount of data haha.
Well for now I will wait.