Other Kerning in illustrator

Hello! I am using glyphs for the first time and I have some pairs of letters, for example’T’ and ‘I’ and ‘T’ and ‘N’ with the same kerning values. But when I use the font in illustrator the kerning is different.
Any idea why?

Thanks a lotUploading...

Did you read this tutorials:
https://www.glyphsapp.com/tutorials/eliminating-font-cache-problems
and
https://www.glyphsapp.com/tutorials/testing-your-fonts-in-adobe-apps

Thank you very much!