When I import images as planes it shows a random line at the top So I am making plants for a game and sometimes when I use Import Images as Planes, it has this random line at the top. I've done numerous test to see if my images were the problem, but every time I reimport the file it still has the line. I tried creating a new image, getting rid of other layers, erasing the background numerous times and it still has it. There are some images though that do not have this problem, but it seems to occur most of the time. If anyone could help, that would be more than wonderful. 



The top has the random line in it. 



The line is not in this image.
Image textures employ interpolation to blend pixels into the neighbouring space so as to smooth the image rather than provide a hard pixelated effect. With the image set to Repeat there is actually a copy of the image just beyond the image borders. In your case the image against the opposite edge is butter right up against the edge and so the interpolation is causing it to 'bleed' across te border - the bottom of your grass image is bleeding into the top.

To resolve this, simply set the image to Clip rather than Repeat.

The option is located under the "Texture" panel:


If you're using Cycles


If you're using Blender render