I was testing and one of the smart moving dependencies Smart Rendring is giving this bug on 1.7.10 http://puu.sh/bRyLK.png

on the latest download on the smart moving they put the dev files of the mod and the dependencies on the download so you an take a look.

Link to the mod page: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1274224-smart-moving