One of my Rift Sensors is showing this issue in USBlyzer, what is the meaning behind the red lines :
While the other two seem to have no flagged entries :
For your information this is my setup :
My Rift is connected to my ASMedia USB3.1 eXtensible Host Controller
My third sensor with extending cable is connected to my Fresco Logic xHCI (USB3) Controller FL1100 Series
My first and second, front sensors are connected to my Intel USB 3.0 eXtensible-Hostcontroller - 1.0(Microsoft)
The one with the flagged entry, is my left front sensor that is connected to the OnBoard Intel USB 3.0 controller.