Has happened to me 3 times in a row now.
I’ve been on defense each time, different heroes, North American servers. Every time the game ends, whether victory or defeat, the game screen completely whites out except for the chat and all control is gone. Game then refuses to close and I cannot even get to task manager. I have to force reboot my entire machine to get anywhere :((((( The music continues to play, and I can hear it transition back to menus.
This patch has also caused some significant problems in terms of fps for whatever reason, even after I turned settings down lower than before the patch launched. But that’s off topic.