my character movements not working properly

Hi, my project is all good conditions(with default mannequin) before following this tutorial for replace my player with metahuman character.my problem is now player only walk only for sideways. i also did combat system and now when i press input command player change into default pose. how to fix this?

tutorial- https://www.youtube.com/watch?v=fz2-N-6hQNU

Thanks!

Mind to record a short video showing the issue?