Shadows using Unsticher & Texture Ender on texture packs

after using the unsticher and the texture ender to reuse some old texture packs (these worked in 1.52) and change them into resource packs everything works until it comes to the shadows of items which appears like a grid underneath the items. the unsticher and the Texture ender both came from http://www.minecraftwiki.net/wiki/Resource_pack