I was playing Beat Saber and suddenly the vibration on the left controller stopped working, I quited Beat Saber and realised that the vibration wasn't working at all, I tryed changing the batteries and the problem continued, I tried to re-pair both of the controllers and restart the vr and realised that when I started the pairing process on the right controller it vibrated to indicate it started, so so the problem isn't in the hardware, but then it continued not vibrating.