Good stuff. Glad it's fixed. The dreaded RSR problem will do that, because Poser 4 (= Poser Artist) uses the RSR in place of the OBJ for faster loading. If there is no RSR, it makes one; after that, the OBJ is ignored. As to why the RSR gets corrupted, that's unclear: but if you write protect the RSR after it's been regenerated that should avoid it in the future.