Daily reward overridden
This didn’t happen to me. I got the reward I was supposed to get today
I received my Exotic Chest/Box yesterday, and Mystic Coins today….just as expected, and as I was supposed to.
You might try logging into each of your characters, in case the Exotic Chest/Box is waiting on another character….remember, the rewards are soul-bound to whichever character you log in with first (on that particular day).
Good luck.