So I want to achieve all of the achievements regarding killing all of the elite bosses. I was progressing smoothly, wasting numerous potions of course, until one day I go to continue and I did not progress to the next map. I beat the previous map the day before, moved onto the next instance, and logged out. However, I was unable to continue and was forced to go back to the previous map.

Are there any requirements besides beating the level in order to progress? I did die once on that map, but I have the achievement for defeating the boss and I also have a recorded personal best time. I don't want to have to play it over and over and waste potions since my main goal is to just beat it, not to get the legendary items.

Thanks for the help.