Trouble using Mod Organizer 2 and Zedit (Skyrim SE)

[Karencg]

I started using mod organizer 2 recently in a new game. The mods are installing fine but I wanted to apply a patch for khajiit ears to show through helmets. I have added zEdit in MO and was able to apply the patch and the esp goes to the overwrite folder. Then I tried to install it and enable it but nothing happens ingame, the ears don't show. I tried to do without mod organizer and it worked when starting the game outside MO,  I tried to install the working mod in MO and it doesn't work even though it's working without it (I tried in a vanilla helmet). What could I be doing wrong?