Why my custom portrait keeps replacing into original one?

[morrneyo]

I put my custom portrait into my character's folder and after I load a game,
it replace into original one. At 3.52 it didn't happened to me...

[PALU]

You may look at the instructions for "Jaredonians Character Models + Distinct Tribes v3 mod" to see how it's done there. If I recall correctly, it involved replacing an image file (after creating a backup of it) with the custom one.