It's not really something someone can comment on directly, like suggesting xyz mod might be causing it. You might not be using the same mods. The only way to really know what is causing it is to disable plugins in blocks, say 5 at a time until it stops. Then narrow it down by activating one at a time until you find the culprit. Also I suggest sorting your mods with LOOT first. I would also suggest disabling the mods with a mod installer of some kind like NMM, MO, Wrye Bash, something other then the Skyrim launcher.
Edited by Sharlikran, 29 November 2014 - 07:38 PM.