I will check on it if you could give me a save then I can try to fix it. Also the hair inner values are 00 - 04 in my region as well however on the character customization screen it is 01-05. so I referenced that too try to make it more straightforward.
Ah sorry - you're right it makes sense to make them the ingame values. In hindsight that is obvious. I should probably get to sleep.
Sure I'll attach the save. The units in particular I can't change the haircolours with are (DLC): Roy and Est. Celica's hair colour also cannot be changed, although it's the right colour.
OK are streetpass units and your MU editable?
Yes, everything bar hair colours. I can however change DLC Alm's hair colour, as well as the avatar unit.