turning to you with a really strange issue - Blender only applies part of my texture onto a plane! I have an image texture that ranges from RGB black [0,0,0] to green [0,1,0] and red [1,0,0]. When I apply this texture onto a plane, without any shading, i.e., just the image texture node into material output, Blender only puts a part (roughly 80%) of the texture onto the plane (namely the part until green [0, 0.8, 0] and red [0.8, 0, 0]). This can be verified in UV Editor mode, when using the color picker tool and picking from the image texture and the texture plane, respectively: the image texture will give you [1.0, 1.0, 0.0] in the upper right corner, whereas the textured plane will return [0.8, 0.8, 0.0].
My problem is that I need the entire texture on the plane. I already tried experimenting with plane size, etc., but didn't have any success. Does anybody know what's going on here? This seems really strange. I attached the blend file and the texture!