Textures Not Cooking

For some reason one of my mods textures aren’t cooking properly. I have them all the parenting correct, all the layers and materials referenced correctly and that, but when I goto cook the mod and upload it doesn’t cook the textures, materials or destructible mesh; only the static mesh. This only happened after I switched the mesh and textures on it. The mesh cooks fine,Like I said everything is parented and renamed correctly, I’ve double and triple checked them.

What can I do to ensure these files cook?