Issue with mod NPC face

I recently did a clean install of skyrim and decided to move from NMM to MO, however after finishing installing all the mods I was left with this weird issue:

Mod NPCs have vanilla faces AFTER I leave the cell I loaded in.

Let me be clearer, the NPC have their correct head when I load a save, however when I leave the cell I am in, they end up with a vanilla head (this appear to only affect the face as the hair remains with mods Apachii and KS hairdo)

Any thoughts on this?

Tested with:

Bijin series

Recorder

I have already moved the mods to the bottom of the list to make sure nothing overwrites the files.

After I leave the cell, if I do a save, exit the game to desktop and then load that save, the faces are restored, however still only till I remain in the new cell. Loading a save without exiting to desktop does not resolve the issue

TES5Edit did not show anything conflicting