switch mouth-set from the library (for shark)

[hnQ8100]

Here we go: I made a handsome shark.
Imported the mouth set from the library.
I scaled the mouth set-switch group to match the shark.
The scale is not uniform but rather Delta X=2, Delta Y=1 (another word, I made it wider).
All done at frame 0.

Then, at frame 1, before I even attempted to do anything, the
whole mouth-set turned back to its original size.
Was there something wrong? Or the mouth-set has to be proportionally scaled?

[slowtiger]

Make sure there's no keyframes in frame 1.