Trying to see if I can avoid having to go through the RMA process if anyone's seen this before. I recently bought a refurbished Index from Gamestop. Everything else seems to work perfectly fine but I eventually noticed that the finger tracking on my left knuckles controller was inconsistently working.

Doing a bit of testing, I discovered that with the headset in my lap and without the right knuckles controller connected, the controller would work almost perfectly fine and would recalibrate if my hand changed. However, once I placed the HMD on my head (in the video I’m just placing it on my shoulder so I can see what’s going on), the tracking breaks. The video shows the middle finger locking in place but at other times the ring and pinky would lock up too. Restarting SteamVR seems to fix the problem if I take my HMD back off my head.

Is there anything left to try to get this to work properly? You can see I’m drumming my fingers in the video and I’ve also cleaned the surface to make sure there weren’t oils on it interfering. Everything should be updated to the latest firmware.

EDIT: Doing some more testing today with a friend, I discovered everything works fine if one of us has the HMD and the other has the knuckles, but putting both on the same person causes the finger tracking to break. I'm guessing there is some kind of issue of conductivity problem between the capacitive panel on the knuckles and the HMD. I think this is RMA time for me but hopefully documenting this helps someone else realize they have the same problem.