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Upon updating an entity (a taxonomy term in this case) using View Bulk Ops I get this notice with both today's dev release and beta3:
Notice: Undefined variable: langcode in filefield_paths_entity_update() (line 245 of /path/to/public_html/d7/sites/all/modules/filefield_paths/filefield_paths.module).
Everything functions correctly though - terms were updated as expected. The nodes I tested on don't actually have any files attached, so I don't know about that aspect.