There have been a number of reports of this. Some people have been having the issue, some haven't, but from what I've been hearing once you have the issue it is on every character you've got. When it happens make sure to bug report it, post here with the bug report number.
I also had a crash, but I thought it was because my computer was being slow, as it had been laggy and choppy throughout the mission. Further more, I hailed Drake, thinking I would get the reward, but he just gave me the mission again (even though it is listed as completed in my Captain's Log) - but I can't get into the system again.