It really looks like these missing endings,
missing part of ending quest to save Karlach
and many more is due to removing the Upper city location from the game (I read 2 weeks before the release, but I dont know if it is true.) We probably have to wait until Larian gives us more info and hoping for polishing the whole Act3.
As I played as good character and romanced Karlach, after the ending, where my only "good" option was send her to hell with Wyll I was completely speechless.
