the issue I have is described over here in details with pics.
http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/resource-pack-discussion/1256366-the-all-inclusive-updated-guide-to-texturing?comment=176
too tired for rewritting it all from scratch, especially when I don't believe in Mojang caring about resource pack authors...
but maybe you gonna prove me wrong...
Linked issues
Comments 3
just as I said, thanks for proving me I was right 😉
but it was worth at least a try, right?
/shamefull
You mention in the forum post that you use Paint.NET. Simply open the file and immediately press Ctrl+S. It will bring up a preview window with estimated size and color settings. Set the bit depth to 32-bit and save. Repeat this process for the banner_base.png image and all the images inside the banner folder. This solved the issue for me.
Resolved as invalid by a Mojang developer here: MC-63485
HD textures for entities are not supported.