In a nutshell it seems to be mainly centred around 'Come fly with me' and the vault missions, although it does spring up at other places in the game....it means the majority of your save games will not load, and you receieve an error stating:

'This game relies on downloadable content that is no longer available. Some objects may be no longer available. Continue Loading? Y/N......Y = The storage device you selected in no longer available. Load canceled'

Highly frustating game breaking error, meaning at best you have to revert to a save game 10 hours+ before...or your screwed.

Official post stated -

"On consoles, we are aware that a small group of 360 users are seeing a DLC warning which is preventing you from loading save games. We are absolutely looking into this bug now, along with other reports of save game corruption. It is our highest priority right now that we find out what is causing it. In the meantime, we recommend you save often, and revert to an older save if this occurs."

However from what I have seen it dosnt seem like a small group but more widespread across all platforms....have you expereinced this?

Thankfully not yet and hope I don't. Also for the vote a simple no should suffice as I have no reason to rub it in anyone's face.

I would have voted if you had put a simple no instead of assuming that those of us who vote no would want to rub it in your face.

the DLC is probably the "Pre-order packages" that people get when they pre-order the game.

No its nothing to do with that - people who have not had access to the internet or any add ons are still exeriencing the issue.

I'm not sure it affects PC players. I haven't heard of any of them getting that error. I know I haven't, though I did get the "Steam Cloud is eating my autosaves!" bug.

I got the error last night in Vault 3. It now won't load my last 2 saves either, so I have to go back much further.

I am having this EXACT same problem but I dont have ANY DLC. Its Very frusterating to have 40 + hours of gameplay erased because the save wont load. WTF? And why wont they release a 2nd or 3rd TitleUpdate?