Friend just bought the Valve Index system the other day. We played for about five hours today, and I noticed that, in Pavlov (and Skyrim, occasionally), I was getting some weird glitchiness where both sticks would stop working for a second until I clicked them in, and then they would occasionally fail to push me in the right direction when I was trying to move about.
Is this a controller issue or an application-level issue? I've noticed that a lot of VR games are not very polished.