[FO4] I need help with this texture replacement overhaul

So I tried everything to get the "Synth Overhaul - C.A.S.T" run properly. The mod replaces the synth armor. My problem is, that the NPC's still use the vanilla armor. I can edit the armor in the weapon workbench, the weapons have the new textures.

I've marked the AWKCR and AE at the installer. I've tried everything the people are recommending in the comment section, I've installed it completely new, I waited a few days ingame in an interior cell (as the author recommends), but nothing of that fixes the problem.

I use NMM, here is my loading order.

Please help, this is so damn frustrating....