I just realized you are using the UV texture coordinate system. This is more Martin’s area of expertise, but I believe you need to change the type on the mapping node to Texture instead of Point. Using Texture will start at the left side of the UV map and 1 will be the right side of the UV map. The only other thing I can think of, without opening blender, is maybe using To Min/Max of either 0/2 or 1/2. I don’t remember the exact numbers. Basically, point works backwards from what most people expect, and texture works in the inverse of point. So, point is Scale, Rotation, and Location. X on location makes the image move to the left on a plane. When you switch to Texture, X on location will make the image move to the right. That is what I remember. you can double check it or I can when I get home from work.
