Shadows Stuttering Behind Running Character

I have this issue where when the characters move any quicker than a standard walk speed, the shadows under them appear studdered and then fade away. I am still quite new to Unreal Engine, and I am only using the cinematic tool features to export footage. I thought this issue would fix itself when I render the clips, but it does not. I will attach a picture of how it appears in the rendered footage.

Any help would be massively appreciated, thanks :slight_smile: