I have same problem with OC Panel on R5E... I got message ROG Panel Could Not Find USB Device...
And I never saw worse connection between some cable and some device... It's almost impossible to cable stay connected with OC Panel.
Constantly fall out. I mean guys who design such connection is crazy, completely... Did you tried that before production or only I have such problem.
But looks like OC Panel work, I see clock, fan RPM, R5E name, etc... that mean connection is good at this moment.
If I move him cable will fall out.