So, I did a build on a Nexus 6 Shamu 6.0.1 build MOB30W I think everything is working other then when I try to open the NetHunter Terminal when I pick Kali the window disappears.

I did a python build.py -d shamu -m -g ARCH -fs full

I had a issue with SuperSU saying the binary needed to be updated so I re-rooted the phone and now SuperSU appears to be fine it looks like the stuff in the menu on NetHunter kinda works but anything that uses the Kali Terminal won't work.

The Terminal try's to load but then disappears.