Here I disabled tiling at transparency and diffuse. Any ideas what could cause the wrong look? I feel there is a bug.
Micha if you look at my youtube video and at my previews posts, you have to change the color highlighted in this image
Andrea, thank you very much for your video. It helped a lot and I found there, that a new parameter needs to be set. Per default anything outside the UV 0…1 range will be set grey per default. What a pitfall! I need to set it to white and anything is fine. (I hate the new UI with this high count of sub menus. Anything is hidden in little submenus. This option is two sub menu levels below.)