Mesh is going nuts in cooked games but perfectly fine in PIE

Hi all! I’m having a problem with packaging this project, the mesh goes invisible in cooked build but fine in PIE. It seems as if the mesh and values spawned is it of the parent class. Is this because of my hierarchy, which is parent-child-grandchild-grandgrandchild?
Here are the pictures of the game in PIE(first pic) and packaged(second pic):