never mind i found the problem:
In Artmd.ini there is a line of code named
[YURIX]
with the line:
Sequence=YuriXSequence
I thought that was it but i found ALL the way down there's:
[YuriXSequence]
I found that i didn't port that line of code.
In Rulesmd.ini at Yuri Prime unit code there is a line:
Image=YURIX
this is how Yuri Prime uses his art in YR if you remove it. It will use RA2's Yuri Prime as a placeholder but it's not animated because it's not used in YR.