Getting really long black screens after leaving a level

Hi ! Am I the only one getting reaaaaaaally long black screens just after the level recap ? The more I play the longer they are, like when I star the game, finish a time period and then leave I get 1 minute of black screen, then after 2-3 maps they last for up to 10 minutes. At first I thought the game crashed but I really didn't want to lose my loot so I just waited, but still either I have to restart the game every hour or so or just be patient between each map (I'm not kidding, I basically have a movie on the side to kill time while it's doing it).

It's the only "bug" I got so far, no crash or anything, but I didn't find anything on this particular issue. Maybe some memory management trouble when unloading a level ?