Unity 2017.1.0f3 - Android build just stops after "Checking devices..."

I've been building to Android for awhile without any issues, then I upgraded to Unity 2017 and when I get to the point where it says "Checking the connected Android Devices" it literally just stops after a few seconds. No error messages in the log, and no error messages via a dialog.

Important to note that I know my device is plugged in and USB developer mode is on (I can switch back to my old Unity and build without any problems).

Is there some other source to look for error messages? Has anyone else ran into this issue?

I did upgrade the SDK too, and that didn't help.

 

Yes, its seems to be a issue with apksigner paramaters