Ok first I am not sure if this is the right place for this post. I am working on an update for a modpack and some of the mod updates are requiring a different version of forge then I am running now. Once I have updated the mods and forge I wind up with broken items. Chisel blocks and be placed but the are see through and even the icons and broken. Below are some links to pictures showing what I mean.
http://imgur.com/gallery/Nu1GR/new
http://imgur.com/gallery/Nu1GR/new