Are you using an older save? If you are, your save might be outdated with this version and causing issues.
The map should be on Leng's desk (2nd room in the adventure guild)
Try making a new game, jump to act 2 and see
Oh dang i was using an old save file thanks man it worked!
No worries.
Almost every progression bug will be because of a user's outdated save.
If you ever experience another issue like that, just jump to the act you want to play from and see if it runs