What is going on with these freezes? A new coalition event glitch

Had a perfect score in the coalition event, game decided to freeze at the loading screen after beating a match with every objective completed and the resolution was that I lost the match and got 0 points.  The developers really need to fix how the game handles freezes because 1 match in a coalition event makes a HUGE difference.  

Additionally, ALL of my planeswalkers HP in each event node was reduced to 10 or less.  What is going on??