Animation Problem

Hi guys i have some problems with animations(i am new to UE4).So i followed this tutorial to the letter How To Make An Animation Blueprint And Blendspace | In-Depth Explanation - Unreal Engine 4 Tutorial - YouTube .After finish there was success with animations,but the one problem occurrs when i try to walk/run.Here is the video of problem. Vimeo .It looks like to me that camera isnt fixed on animation(if you call it like that).So when i peform the animation after 2-3 steps,it pulls my character back,like lagging or something.Here is the video of Blend Space UE4Editor 2021-09-26 17-37-29-16 which show that when animation is performed it pull back character after 2-3 seconds.I hope someone could help me with this.