import

Troubles importing from illustrator - weird shapes

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Hello!
I have a trouble when I upload my glyph from illustrator to Font Lab. The font is quiet complicated, it's supposed to have a kind of texture. It's all traced and all shapes are supposed to be closed (I used the pathfinder). But when I copy/paste the font, it gives me the result as in the picture attached...
Would any one have an idea of what could be wrong and how could I repare it?

I'm struggling since 3 days. Getting Crazy! Pleaaase.