I just reinstalled OP and applied the 2552 patch. I have not made a single modification to anything yet. I haven't even copied over the models. In single player mode the admin shuttles are not launching. The UI puts shuttles in the active box, and the launching sound effect plays, but no shuttles show up on screen, and they will do nothing, not even return. Special shuttles, like decoys, work just fine, as do fighters. But regular shuttles seem to vanish upon launch, even though the UI lists them as active. Does anyone know what's going on, and how to fix it?