Which USB controllers are you referring to?
Because I use a USB Controller on mine
Hi Justin,
I've been using a wired USB XBOX 360 Controller with the Feb 2015 BETA since it came out with no issues, but after upgrading to the Mar 31st F/W, my controller is no longer recognized. It's powered, but the ring of 4 lights flash all at the same time now (on/off/on/off/... continuously) whereas before they would flash though a specific pattern/cycle while it was recognized.
Erik