You're probably just missing the step to walk out of the barracks to the worldmap and back, without the use of the fast travel option. The CG scene doesn't happen immediately after the quest.
For the future, it might help that there are 2 autosaves in slot 19 and 20, which are used alternating every 2,5 mins. So if one of them saved after a "problem" appeared, then you might still be able to use the other one.