The game lets you pick a faction on subsequent characters in act 1 which is great. On my second character I quit the campaign early to start doing monoliths.
However much to my surprise you don’t gain access to the observatory unless you clear all the way to act 9 again. Now I’m extremely overleveled and would have to spend several boring hours just walking through the acts if I want to use prophecies.
Suggestion: Unlock faction waypoint when picking faction on second character
After unlocking them for the first time all other characters created will have 2 npcs in keepers camp to choose your faction again. For staying the same faction everything is fine you keep the same level, but if you do swap factions I’ve had troubles with the faction just not letting me teleport to there.
Edit: After reading it again I see the problem sorry, but as I said earlier if you chose the same faction it should have instantly unlocked the waypoint but I also had this problem for changing factions even after getting to chapter 9 from campaign skip.