Happened to me today too, but in the seasonal event. Someone kept talking about their PvP gear, so I went to inspect them as the instance started and the game crashed. Everyone's name was in the group list twice for some reason as well.
This has happened to me multiple times over the last couple days. It has not been in a cut scene or any one particular are/area though. For me it just happened randomly when I'd try to inspect a group mate and.......wtf....yep I just DC'd. But hey it would'nt be DCUO without the DC.