I reported this bug about a month ago but it is still in the game. I am playing a new game, on a different computer, and still encountering this issue (game breaking for trial of iron). After going to ori o koiki and meeting the the ranga, I agree to hunt the slavers. Then I exit through the cave in the back, and there is no compass icon where i came in to go back to the world map. When I use the main entrance, and take the lift down, there IS a world map exit so the bug is related to the back entrance cave. 

Greetings.

 

My apology for the inconveniences you are experiencing please can you provide us with a savegame file so we can investigate this issue on our end?

 

Cheers.

I guess it's not related to the cave, I am trying to reproduce the bug to send you a save but I am having trouble getting it to happen again. It happened twice though, and I searched very thoroughly for the icon. I am positive it was not there both times.