No shift after engine rebuild

I hope this is a simple fix!  I had my engine and GDU rebuilt this offseason along with the Life ECU updated with a new battery and just re-assembled everything this weekend. 

The issue I am experiencing is that I am not able to shift gears.

The compressor is on and holds pressure, the paddleshifter levers do not initiate any response unless I have the neutral selection button pushed and when that is pushed, you can hear the pop of shifting gears.

I hope I just missed plugging something in during the re-assembly process and is a super easy fix but I have no idea where to start that search.

Any thoughts or suggestions?

Thanks!

Bryan