Some players not changing faces

Some players/prospects have problems when I try to edit their faces. For example, In my association I have Danny Green in my team. He is darker than its supposed to be and has a different face so I changed his face by replacing his iff (number 4278) with a different iff and changing his skintone to 3 but nothing changes. I already ticked allow iff in FlyingFinn's editor but still nothing happens. This happens to players with faces near this number (4278). What is wrong?

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