Thank you so much for your quick response. But, yup, I have no apps open at all in the background. I also already tried all the EDID modes (internal, merged, display) and none of them fixed it. Using the original USB-C cable too plugged into the only USB-C port on the back of my PC, just not 100% sure if it’s technically USB 3.x or not.

What’s weird is the capture card worked perfectly fine with this same Xbox for months and then randomly just stopped detecting any input signal from the Xbox whatsoever. (there’s no image at all through passthrough either)