Attached Link: walk issue

Hello, I'm having a issue with applying some animations to my V4 figure. I have recently reinstalled all my content since I restored my computer, and I don't recall having this problem previously

Here is a link to a youtube video of the problem, showing how the animation should look first, and then how it looks applied to v4 after.

http://www.youtube.com/watch?v=Gw841UUa-rs

As you can see in the above video, the animation I applied works fine on M4, but when I apply the same animation on V4 the legs don't move with the rest of her body.

I have applied animation poses I have made/purchased before to M4 and V4 and they worked just fine, so I'm curious what could be causing this now.

Any help would be appreciated! cheers