Problem with Images as planes


I am working in Standard Blender Render and I’m using images as planes. But I get very strange black strokes in the rendered result. I really don’t know what I am doing wrong. When I am showing materials in the viewport shading, no black holes are visible. I never had seen this before. is it a bug in the latest Blender version?

Hope anyone have the answer.


One idea, maybe try recalculating the normals.

Post a sample?