Straight from EA via the OS forum:
We have been looking into the issues that some people are experiencing with games not being updated and people having their dynasty "hijacked" the last two days. The engineers have found the problem, but aren't yet sure how it is happening. We are probably going to take a preventative approach if we cannot find the bug.
In a nutshell, files aren't always getting uploaded to the correct locker but instead to someone else. Our server guys have estimated this effects 2% the lockers.We have found that we can repair broken dynasties by removing the bad files from affected lockers.
Once we have figured out how to fix all the issues, we are going to run an automated script against all lockers to clear the issue, then prevent it from happening again. Right now it looks like all the fixes will be server side and not require a patch. On the subject of a second patch, we are planning on getting it out a couple weeks earlier than originally planned. So I should have an update for what is going to be fixed in it pretty soon.
Well, at least they're fixing it.