1. Turn on the Index controllers and perform some gestures
  2. Hotswap to the Vive controllers, perform a gesture, and then return to a neutral position.
  3. Swap back to the Index controllers and try performing gestures.
It's easy to notice with gesture indicators on, but when swapping back to the Index controllers, you may find that one of your gestures will be stuck on, and you'll be unable to cancel it without restarting the client.