I’ve had this for the past few weeks where the whole game freezes when event ends but before you get to the “you’ve won” screen. This is especially true when the final/winning game is “King”.
I have had this for the past few months with the worst being 6 times in a row! I have no idea what I could do to fix it my end but for my sanity I have to ask. This is usually the hardest seasonal challenge to win as it’s the one least within your control, let alone when it’s a 50/50 shot if the game will just freeze/crash and not count it!