In a WW2 aircraft, maybe...
But it sounds like you lost all input, and the plane "flies on" like it does after you eject -- you can watch it slowly roll in.
I would say that if the new feature for WW1 was added, then all of a sudden "THIS" happens, perhaps one is causing the other (or they are related!).
Makes me think there's an association between "plane is dead/pilotless" and some mistake where the pilot is still in the cockpit wondering why the plane is doing this.