When I play APOTU on my Index, the game seems to think my right thumbstick is always pointing diagonally up+left, even when it's physically not. (The model shows the stick pointing up+left, and I seem to be permanently in 'teleport destination select' mode, with no ability to complete the teleport.) The left thumbstick and both triggers seem to work correctly, and I'm able to grab things.

SteamVR is able to see the real state of the right thumbstick, so I don't think it's a hardware issue. I tried closing and relaunching APOTU, closing and relaunching SteamVR, and turning my controllers off and back on, but the problem still happens every time.

Any ideas what might be wrong?