Someone finish the objectiv "Get me out of Here"? for me its looks like impossible, I insta killed every monsters and bosses, I picked every item from the drop, and I cant go further level 144 (I tried 2 times). Maybe I have some lagg so I lose some time, or its really impossible. I picked also 4 chests, who make me lose few second.
You can click on the chest you just received and go through the claim dialog, then go back to opening the chest you were opening. It's on our to-do list to suppress the new chest animation if you're on the opening screen.
Thanks for the report. If you backtrack an area and then go forward again, it reappears or you can refresh. It's on our bug fix list.