I just spent about an hour in Medium, and several times, one of the controllers would stop tracking right, and start spiraling around my hand for a few seconds, then pop back to normal. Pretty sure I was well within the view of both cameras, and it's only happened to me in Medium so far. If I wasn't so sleepy, I'd go back in an see if it replicates. I'll update if when I can, whether it replicates or not. I'm just wondering if anyone else has experienced this?
I found out the problem wasn't actually a usb driver update. The problem was Spotify playing in chrome? when spotify is playing medium FREAKS out. I played spotify with the default app in windows and there were no issues. Something about spotify in chrome makes medium go nuts???