How do you disable or turn off "wing level" in autopilot?

Question

Wing level seems to be stuck on.  Can't change altitude settings in autopilot.   Occurs in all aircraft.   Deleted preferences, removed add ons, even reinstalled x-plane.  Nothing changes and cannot disable wing level in autopilot.

Comments

At times it seems to swap from wing level to vertical speed hold.  If I toggle "display fps on screen" it switches back and forth.  So I'm guessing this is a bug.  How do I reset x-plane to default first flight?  Even uninstall and reinstall did not fix this.