Hey guys! I got my new MacBook Pro 15" 2 days ago. I bought USB C to USB A adapters on Amazon. Sometimes I can plug in devices and sometimes not. I get a warning message then that says the USB port had to be deactivated due to a high power consumption. But I think that no mouse or usb Stick drains to much power... so it seems to be a bug! I have no other problems, didn't use migration assistant or Timemachine Backup!