This is more of a warning. There is a currently active grass plugin that when is active, causes the image below. To get rid of it, unfortunately, you have to go through each part and remove it independently. Before you remove it, you do have to remove the plugin from the studio or make it inactive. If you don’t do this before-hand, it will just cause the object to regenerate. If your stuck finding a grass generator, I’d recommend Grow Grass by Xysanth.
What it causes: