I have a problem unlocking expedition maps, the first time I encountered the problem, he showed up at level 67 veteran, once all 3 levels were completed he did not unlock the champion. I solved it by having a party and unlocking it with a friend. Now I have the same problem with level 97. I have completed all 3 levels but the Master does not unlock me. I have tried at least 10 times but nothing to do. How can I solve it?