Hey just had this bug as well. Up until now to get rid of it, I would run BOSS and then TES5Edit, and if that didn't clean up any problems then I'd restart steam. Usually didn't have to restart though. Today that didn't work, and on a hunch I decided to check to see if it was something to do with NMM, and wadda ya know, I'm not running the latest version. Just upgraded, and voilĂ ! Fixed. For those of you who don't know, BOSS is a sorting tool which cuts out the frustration of manually sorting and organizing the load order of your mods. It's a big help. TES5Edit is a cleaning tool, which clears up conflicts between modules, at least, as best as it can. Hope this helps someone else. Cheers, ~GC