I've played the free version multiple times and it never worked so I stopped playing, then I saw that its been updated a lot so I thought I would try it again for the 4 dollars but it still doesn't work on valve index. For example my hands always glitch behind my back and then I can't get them back and also I can't close the menu I've tried every button but nothing works. 

Ok, I've updated the PC build and specifically added a binding for the menu on the left index controller b button (that seems to the standard from what I can tell). I can't test it since I don't have an index (and Valve doesn't sell them in Australia)