Is there a known problem with using the scale animation and reverse animation tools in milkshape?

I used these to chop out the middle section of an anim, in order to only have to make small changes to get the new anim I wanted. This looks great in ms, but when I use the anim in game it seems to use the first part of the original anim, which should no longer be there...

I'm sure there isn't a problem in any of the codes.

Further, when I convert this anim to text there should only be 33 frames, but instead there are 138 lines of data for each bone, one less than in the original anim.