Item Textures Not Loading

Items from the Generated Structures Mod and the Gravestones Mod aren’t loading their textures. I am able to see their names in my chests and inventory when I hover over them and their durability bar but not the item itself. I don’t see weapons when I am holding them and I do not see armor when I wear it. The Gravestone statue also doesn’t load either. I can use it but I cannot visibly see it.