I don't know if you figured out the issue but I had this problem too. I had the mods Pandorables, Pandorables Dawnguard, Ordinary Women, and the Bijin replacers in the wrong order. This was causing my issue. Once I placed them in this order: Pan, Pan Dawn, OW, Bijin the problem went away. The mods (pan and OW) conflicted with the Sybille Stentor mesh and caused my crash.