'Trouble getting video stream from 3 webcams

I am trying to capture video from three Razer Kiyo pro webcameras 1 for use in an object detection system. My problem is that every recording program I have tried can capture streams from two cameras, but not the third.

I have looked up my usb controllers in device settingsSee supplied image link

and I see that I have only two usb 3.0 root Hubs. Does this mean that I am limited to two usb 3.0 devices or is it just that 3 cameras is too much. I have also tried with a usb 3.0 hub (unpowered), but the result was the same. I would appreciate any suggestion to what I could do to capture streams from 3 cameras. Would a powered hub fix the problem, or do I need some kind of external usb controller?



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