A SteamVR update removed the detection of the thumb rest area as a button, so this update fixes it by using the "thumbs up" gesture combined to the button and joystick touch to detect whether the thumb rest area is being touched. Known issues: It does not work with Steam Link, and at the moment is not yet detected to fall back to joystick. If you use Steam Link, change the game profile from "thumb rest touch" to "joystick touch".