Holes on meshes when using SplineTool?

Hi!

Does anybody know why the meshes that are on the SplinePath has holes on them?

Basically, I’ve created a spline tool to place 4 static meshes randomly on the path so I can shape them. However there are holes on the meshes. The meshes are fine on they’re own when they are placed in the level without spline tool so it’s definitely not the mesh or material’s issue. I’ve tried turning on Two-sided under the material’s detail but the holes remain.

Here is the blueprint I used for the spline tool

And screenshot of the issue as well.

Any help will be greatly appreciated! Thanks!