Round start mulligan UI frozen

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Mulligan bug

After mulligan like 4 times in game, and at the begining of any round using any card with that effect, I can't finish to draw and can't see the board e.e , I can't get out only with Alt f4

sorry the english.
 
Bug During Mulligan

During your mulligan there's a chance that the game will stay on that screen for the rest of the round, causing you to run out of time every turn and lose all your cards. I'm wondering why hasn't this been fixed yet as it's happened to me every once in a while over the past month.
 
[BUG] (Visual Bug/Gameplay Bug)

http://imgur.com/FOys7d2
http://imgur.com/a/VLz6p

Description : Was on alt tab watching YT video while still on queue, Then went back to game after a minute, says redraw 3 cards which is normal, then I picked 3 then I couldn't close the selection tab even if I click on the finish redrawing button down below.

*The first image portrays the beginning of the match.
*The second image portrays the stuck screen until end of the match where I am forced to alt+f4 cause of that bug.
 
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