Well, I tried it on two computers,
I tried the one with Sierra (10.12.2)
1: Downloaded XQuartz (Idk if it's related but here.)
2: Restarted my Computer
2: Downloaded the Feb. 7 PKHex Mac that you have at the start of the thread
3: Unzipped it, and it bounced, then went away, (From the Dock) But when I opened it from the Downloads folder, the error below shows
(This is consistent with EVERY version of PKHex, even the old Gen 6 one here. It's all Sierra's fault.)
With El Capitan (10.11.6) However, all I did is:
1: Downloaded XQuartz (Idk if it's related but here.)
2: Restarted my Computer
2: Downloaded the Feb. 7 PKHex Mac that you have at the start of the thread
3: Unzipped it, and it worked fine, and this is with almost every version of PKHex, including the other one I just mentioned.
So if you want to use PKHex/PKHax on Mac, DON'T use 10.12!!!!
(If you're still having issues with 10.11, I don't know what to say. Sorry. )