Flickering textures on Geometry Cache asset

Unsure what to categorise this as, apologies if it’s in the wrong place

I’ve created an animated mesh in Autodesk Maya. I’ve saved it as a .ABC file and am trying to import it into Unreal with materials (I’m using UE5.2.1).

I’ve used this tutorial to import the mesh from Maya to Unreal - https://youtu.be/b_FvqQyyYFk?si=0EolQ8Zv8twV9IXt

The material looks fine when the mesh is stationary, but flickers when the animation is playing. What have I done wrong?