Same problem here : can't change camera rate
+ cameras seems to be not aligned correctly: right camera is looking a bit higher than left camera, producing instant headache when activating cameras in chaperone...
I had a long discussion by mail with support team, they made me reinstall everything, Vive drivers, change steamVR version, GPU drivers, change camera settings (rate..) ... it took a week (1 mail / day) , to finally say that maybe my device has a problem and I should return it...
But that I know that I'm not the only one with the same issue, I don't know what to do :-s
