Talk:Underworld Tower to Heaven/@comment-2602:304:CE7C:1400:E9F0:2B37:24F3:4E68-20170809185615

It seems if you exit/completely close the app at the "reward" or "confirm" screen after defeating a rune boss and then check the event menu after logging back in, you still get the runes.

I left it on that screen and had to close the app when an update got pushed.

Don't know if this works for others.