XBox 360 controller's vibration does not work as expected!

After the latest update last few days, my XBox 360 controller vibration feature does not work as fine as before that.

Normally it will vibrate as soon as the aircraft has any motion on ground: start to be pushed back, taxiing, steer, run for take off or landing on runway, or stall in air… I really liked and enjoyed the sim with this feature.

But now it just vibrates very randomly and not as stable as before. Sometime it stays quite silent when push back start, or even the aircraft have very hard motion on runway or sharp turn on taxiway, but it vibrates when aircraft are just on normally taxiing.

Anyone of you also noticed the change of vibration? I hope this feature will be back to normal as before this patch.