DDJ-800 FX/Performance Pads stuck on.

Hello. Firmware/driver installed. Upon connecting the controller to the CPU the FX Display starts flashing continuously. When loading a song the pads go crazy and cycle thru all the assigned actions and won't stop. I've tried restarting everything, both plugged in and unplugged. Multiple varieties of ways. Used two laptops and both Rekordbox and Virtual DJ, same thing. The software works fine without the controller connected. I can't figure this out.