There is a limit to the number of textures that can be rendered by most graphics cards in one go. I can't remember exactly, I think it's 16 total per landscape chunk. That includes diffuse, spec, normal, etc. What you have there looks like crazy overkill. No one needs 12 sand layers. As for the error, have you tried…
Hey guys, i am in need of some help with UDK textures for landscape, i have been looking for a solution to this problem i am having and i came across an old post on landscape layer blend HERE. what is the limit of textures i can have? so far i have plugged 17 different textures and it seems to be running smoothly and…