Gods & Kings Isn't Showing

I'm currently playing with BNW & G&K as well as all the DLC, however when I try to enable mods it says I'm missing G&K. Does anyone know why this is happening? I clearly have G&K installed, but it says I don't in the mods screen.

EDIT: The same goes for scenarios.

In the same menu where you can choose either SINGLE PLAYER (at the top) or MODS (in the middle) there is another selection called DLC. Click that and ensure in the menu that pops up you have Gods & Kings Expansion Pack checked (to enable it).

I already have; I am sure that Gods & Kings is installed.

Ok, I've tried disabling & reenabling G&K, to no avail. What now?