Hi @ I sent you an email, but it appears there may not be an answer for using more than three Trackers, two Controllers and an HMD. 4.18.3 or 3.19p5 crashes 99% of the time, when it doesn’t, as soon as you press any other button besides the triggers it crashes. Triggers do nothing to actually enable ViveMoCap past the startup menu window. 3T - 2C - 1HMD setup does not crash, but once & awhile triggers have no effect though.