Help! Some of my animations scale the character down...

I have trouble with some animations with tend to scale the character down…

It happens to animations from different kinds and there seems to be no connection.

One is when the enemy dies
One when he starts running

I reimported the animations with different sizes but that didnt worked…
I have no clue why they are doing this and how i could fix that.

plis halp :c

I fixed it. My problem was that i had different base meshes wich had a different size to create the animations. Solved it with using just the lateest Mesh. They all have the same size now!