Trackpad's haptic feedback not working

Hi, I own a 2017 13" Macbook Pro and like 2 months ago all of sudden the haptic feedback for the click stopped responding I checked every setting, resetting nvram and SMC to no avail. It came back out of nowhere about a month ago and after 2 or 3 days left again. Force touch is still working and detecting pressure, just the vibration's missing. Any idea why?