Not enough information: "export it" from what? As what? OTF? TTF?

Yes, export as opentype font (OTF).

The superscript letters are now working in illustrator but not in in design.
The kerning though is missing some pair in both illustrator and in Design but in the text editor they appear just fine.
Can't really get the reason of this problem?
Has anyone had anything similar?
Thanks again

InDesign is sensitive to the language you assigned to your features. Perhaps the fault lies in there.

Are you using class kerning? Are all the offending glyphs in their proper class? Is the left or right kerning check set properly? Have you updated kerning from Kerning Assistance menu?

From your picture, I can see that kerning n the left side of W and V is not working but it s on the right side. Check tat check box on the V/W kerning class.

Ok I've overcome the kerning problem. It seems I had too much kern pairs in one single subtable, I divided it along other subtable and its now ok.

But Small Caps still doesn't work in Illustrator, It's just scaling down the Caps...
Any ideas?

Thanks!

Small Caps was a Language problem!
Thank you so much Theunis!