After I completed act 3 it made me restart all the way back to act 1 and do quests I’ve already done. It’s extremely frustrating and don’t know how to fix it.
Same here. I think that if you finish a quest but then don’t portal back to the town it pretends you didn’t finish the whole quest and will make you do it all over again. I’ve done this 3 times now on the second boss. Didn’t get to test my theory yet because I beat him again and then it crashed. Game is insanely frustrating to play so far.