Devastating bug lives on

Playing Avacyn's Madness match 3.2. I completed both objectives and was going for the easy win. When I attempted to replace my Torgaar with an Ajani token, the game froze. This is simply a devastating bug. Not only does it destroy my personal undefeated event, it also penalizes my 19 other coalition mates. I have been playing this game for over a year. I've spent over a thousand hours of my time and over a thousand dollars of my hard-earned money on this game. I love this game, but bugs like this make me want to quit. 

You have known about this bug for a long time. It should have been fixed on this last patch. Please make this your highest priority fix.