In last 2 days, after clicking Claim reward, the dialog keep appear, the only way to close it is terminate the game.
It’s happen on Ipad.
I’m having this issue in steam as well. It’s annoying to have to reclose the game after the first match.
Had this bug today and a couple of days recently.
Strangely I don’t think I ever saw this bug before it was mentioned as being fixed in the patch notes.