strange oscillations in 2.5.1

I set my joystick as nonlinear control, exactly like in 2.5 stable. But now when I trim it happens that the plane has some strange nose up - nose down oscillations. Never happened in 2.5 stable. Does it happen to someone else?

Yes, I am getting very uncomfortable behavior with nonliniar input in 2.5.1.

It was the same in 2.5.

I dont experience it much though. If your stick is not centered when you trim, make sure you move it a bit. Especially if you hold the trim for long. That is the nature of the system.