[Q] Soft Key Stopped Vibrating

Hi guys as we all know Soft key has the option to vibrate when it's pressed and the vibration intensity can also be adjusted using power button as shortcut.(other method is also there through settings). Recently my soft key have stopped vibrating. It functions but it have stopped vibrating. Couldn't figure how to fix this and how come it happened automatically.

Can anyone please help regarding this?:crying: