Foliage only has texture in editor.

I’ve been having trouble with textures on a rock foliage I’ve been using. I’m fairly new to unreal engine, and I’m not sure what the problem is. In the editor, the rocks look like they’re supposed too. They look great, but when I play the scene in a new window with a first person character, they appear to have no texture. I’ve looked elsewhere and can’t find an answer that will resolve this issue. Here are screenshot examples of what I mean.

Rock foliage in editor:

And here is the same rock foliage when the scene is played: