SkeletalMeshComponent going in the ground

Hi there,
I have an issue where the mesh component of a character goes in the ground while moving.
Untitled

As you can see on the screenshot, the capsule component is correctly positionned on the Z axis.
The CharacterMesh is a child of the capsule and its simulate physics and gravity are off. The goal position of the movement is (0, 0, 0), which is right at the level of the ground mesh.

I don’t know what else to check, any idea?