I had a missing mesh issue "pc_b_imp_m_head_05.nif" with an NPC named "pc_Daripp Muspidius00000000". I found the mesh in the PC_Data.bsa but I'm guessing this mod isn't properly using the bsa or something. I had to use a bsa unpacker to extract the mesh and the texture into their data files folders (I had to create the folders for the mesh).
4 comments