UE4 won't find my Android devices?

I have the NDK installed, doubled checked all environment variables, set up dev mode with USB debugging and verified that my device shows up with the “adb devices” command, still nothing.

EDIT:
My device also shows up in Visual Studio 2012

Double EDIT:

Ok, so I just rebuilt the source and now it sees my phone. I recommend doing that after the ADK install and see if that helps.