Hmmm. . . Well how I made my texture for my terrain was basically by duplicating Mat_TheIsland as well as TheIsland_Mat_Hole_Inst or w.e texture and placing it in the content folder within my mod folder that I made, then selecting those from within my own content folder as the source of the painted material, I also took each of the 22 materials and placed them into my content folder. . . Maybe this was more than needed? I just think it’s odd that it works in SinglePlayer or even Host Non Dedicated Session with Textures.