I only noticed this recently when trying to spawn a follower. This follower was working until something happened. No clue what. This is from the log file. Why is this happening? I have even pared down my mod list thinking it might have been due to having too many mods.
DEBUG (18:54:50.0489): remove mod file Data\Meshes\Actors\Character\FaceGenData\FaceGeom\Natalya Follower.esp\00000D62.nif
INFO (18:54:50.0489): deleting Data\Meshes\Actors\Character\FaceGenData\FaceGeom\Natalya Follower.esp\00000D62.nif -> C:\Program Files (x86)\TSEV Skyrim LE\data\Meshes\Actors\Character\FaceGenData\FaceGeom\Natalya Follower.esp\00000D62.nif
ERROR (18:54:50.0490): failed to remove virtual file Textures\Actors\Character\FaceGenData\FaceTint\Natalya Follower.esp\00000D62.dds
DEBUG (18:54:50.0527): remove mod file Data\Textures\Actors\Character\FaceGenData\FaceTint\Natalya Follower.esp\00000D62.dds
INFO (18:54:50.0527): deleting Data\Textures\Actors\Character\FaceGenData\FaceTint\Natalya Follower.esp\00000D62.dds -> Data\Textures\Actors\Character\FaceGenData\FaceTint\Natalya Follower.esp\00000D62.dds