What does "challenge received" mean?

I just resigned from a game. Immediately, a voice said “challenge received”, but nothing seemed to change in the UI – no notifications, etc.

What happened here? Does this have something to do with the Rematch button (which I’ve never attempted to use)?

In 2014 there was a topic on this:

Maybe this is related to that.
Well, we beter wait for a mod to sort this out :slight_smile: