So far when reading these forums I have encountered alot of posts about loading previous saves that could be have been corrupted by the bug at an earlier time. How do you know when you load a save that the bug has already started? Is there any tell tale signs?
The game will try to load the save and you will be told that the DLC could not be found or is not available. Something like that. Then you'll be given the option to try loading anyway, you'll say yes, and then you'll be told something about a storage device could not be found. This is all off the top of my head and not exact.
But you'll know, without a doubt that you're ***ked.