Contextual alternates in "MS Word" doesn't look what it should like.

[Bart Bossuyt]

Hi all, ive made a font using the "calt" feature. So i need "contextual alternates" on in Word. But i only makes my font look partly good. Any other program i use (indesign, pages, illustrator, ...) makes the font look just fine.

Any idea's how i can fix this? it looks like some of the kerning isn't working right in Word.

I have this issue on both pc and mac.