Well how can I explain it in better way. I have always make new materials like new tiles, granite counter-tops, stone flag, wood , shiplap, etc. etc., and I never had a problem with doing so, I don't mean not to be polite or not cooperative by not screenshotting more samples that will probably illustrate my problem almost to the same result, to be more specific, it doesn't matter if is just cabinets, tiles, wood, walls Chief won't let me apply the new materials/textures to the surfaces like cabinet counter-tops, tile walls, tile floors, tile back-splash and so on. This is a simple scenario where you will find yourself trying to apply and new custom materials to a surface and it doesn't work at all.
It will just paint them white or black, it has been bugging me for almost a week...
Thank you Solver, I really appreciate your interest and time.