My Oculus Quest arrived today (yay), and when I first set it up everything was working perfectly for a few minutes, then it says "Left controller not found". In the app it shows as paired, but I can't see battery or firmware info like I can with the right controller. I've tried pairing / unpairing, removing the battery for a few minutes, swapping batteries, factory reset my headset, etc etc etc. It's worth saying the light indicator on the left controller works.
I've raised a support ticket but thought it'd be worth trying to crowd source a solution too - anyone else had this problem?