What is the solution to correct the animation in game?

Hi everybody,

I have a problem with the Anim Starter Pack. All of animation are good, just one make me a problem.
“Equip Rifle Standing”. At the beginning and the ending the character go under the floor… Just at this moments.
The capsule don’t move, it’s just the character for this animation. In Matinee, the animation has no problem. The problem appears just in game…

Please, I need your help for continue my lesson with UE4…