The issue happens with root motion and root lock on. I animated in the sequencer and had the root following the character in Z axis. When previewing the animation, the issue doesn’t occur. Any idea of what might be happening?
I’m going to have to assume you mean constant sliding with feet glued to the ground, not just out of sync with the movement of the capsule. If so, the attached video will help you correct it.
Unreal Mannequin Feet Not Moving on Custom Animations - How to Fix