glad to know its not just me. also, i found out one way to make it happen...maybe.
Evil Cole was the last one i had to do, when i finished his last combo i quickly paused and change the objective back to combo 9 and then it still said "victory". when it came back to the character select screen it didnt have the "tutorial complete" sign like the rest of the characters have now.
after going back through all of his training again it put the sign back on.
(trying to complete it by skipping to combo 10 did not give me the "complete" status) --- Always remember: For every five minutes, you waste an hour. -Arc Ray