User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-4976111-20120831191706/@comment-2.217.54.83-20120831204710

This is kinda why I think there is something wrong with the engine's compatibility with the PS3, and coupled with Bethesda's lack of experice of making their own engine. Makes perfect sense why they are having trouble, if you ask me.