hughJ :
It's not a bandwidth issue. I have 4x USB 3.0 controllers: 2 PCIe cards, plus two controllers on the motherboard, and I can verify through the Oculus service logs that there's no reports of camera errors while the tracking errors are occurring.
You could still be having bandwidth issues and I can walk right out of sensor range without errors because they aren't errors. Some people are having bandwidth issues and some people are having something else
I have no issues at all although Everytime you move a sensor you need to recalibrate the setup. That goes for steam vr and Oculus at home. If you don't recalibrate it assumes everything is in an Identical place and as I'm sure you know moving a sensor during gameplay can really mess up the works.
Not saying that's your issue either, all I know for a fact is some people have bandwidth issues and some people have no issues at all and apparently there is a 3rd mysterious issue never heard of before that only effects some people so...It's probably a bandwidth issue.