>>296147927
Not sure if the same error but my index acted up as well and got red lights. All I did was exit steam vr, unplug my connector, restarted computer. started up steam again after reboot, replug connector. However that made my index lenses show static and weird colors. Unplugged the displayport and everything this time, also unplugged my second monitor to see if that messed it up. Also changed my audio standards since I changed that up for a previous game, changed so my standard was nvidia hidef audio which apparently the index uses. After all that it works now. Think it was my monitor or the audio somehow fucking it up. 

Maybe try doing the same as me and see if it fixes itself. Anyways, hope it works out.