I got the popup message six times in a row that the explorer came back (it was the same explorer, but it appeared 6 times as if i had 6 of them- i only have that one of the type).
However, when i went to my inbox to see what he found I have gotten no message in my inbox. I restarted the game and popup came up 2 more times, still same thing. I bought this explorer with footballs from the event.
What's the issue here?