I have completed all adventures, and found all region chests in the EDZ. However, on my triumphs page it says they have not, even though a single adventure or region chest is visible on my map in the director. Not sure what else to do. This is on my Xbox account.
Looks like you are still missing 1 region chest (which I think is only available during a certain adventure). To confirm, can you post a pic of your trostland map section? As for the adventures, I believe you may also need to complete the heroic versions.