In this thread:
https://forums.oculus.com/community/discussion/comment/473462#Comment_473462
there were several people had success running Full Setup, rather than Reset Sensor Tracking, to fix tracking issues involving tracking and upside-down camer…
Here is more detail on what I experienced without doing full setup:
Using two ceiling-mounted, upside-down front sensors, I'd configure guardian space using touch controller and monitor. Some fraction of the time (less than 1/2, more than 1/5), the…
So delighted to find this thread. Running Full Setup gives the user zero indication that it is doing anything more than what Reset Sensor Tracking does, tracking wise, but it is and my upside-down sensor setup needed it.