On occasion I started seeing some odd tracking artefacts when working in Tilt Brush. Sometimes the controller tracking would be slightly warped, almost as if space was locally deformed in certain places… Weird tracking The behavior was not persistent – it would appear and then gradually fade over the course of a minute or so. Then there were other times when the tracking would go completely bonkers for a second or two, controllers shooting off into space etc.
The cause was painfully obvious once we figured it out: Lighthouse tracking and glass panel doors don’t mix – every time someone left the conference door open at certain angles it would reflect the base station laser sweep!

Glass doors