Been experiencing some weird bug recently in the Nether on Expert. The reward chest at the end of any encounter after defeating the boss, whether it’s progressing forward or completing the activity, can be opened but does not visually display the rewards dropped upon opening the chest, does not show up collected in the players inventory despite of empty weapon and armor slots, or show up collected in the postmaster on the companion app. For the rewards, everything is sent to the postmaster, so that empty chest isn’t actually empty. Must manually collect rewards by interacting with postmaster at The Tower or The Last City via in game.