I had the same problem and fixed it. what i did was i disabled all the mods that i used (even the official update.esm one) and then enabled them all back again. since i used the dual sheath redux mod, i had run its patch again (need BOSS for this one, more info here http://skyrim.nexusmods.com/mods/34155/?). then i opened my last save and it was fixed. honestly, i dont know whether it was fixed when i disabled the mods or run the BOSS program, havent had much time to figure it out. also, im not sure if it'll work for everyone but i hope it'll at least be a help for someone. not sure if its a real solution though
