Arghanion's Puzzlebox - Cosmic Forge - Asteroid Rings Library

Hi I purchase the Cosmic Forge, but it is not working well, the first 3 maps do not load and crush, the last map “Lv_Asteroid_Overview” have visual problems like black squares. I thing there is a problems on the materials. I use the content on a new empty project and happen the same. Let me know how I can send you pictures or anything to fix this problem. Please. beside this, Great work.