I have played only one match on 'Short Fuse' today since the new update, but there already seems to be some significant bugs: When I was playing Shae, her KAA7 couldn't fire rapidly, instead it had 3 second delays and I had to re-press the fire button; and my friend had much worse issues in the match: at the mission character selection screen he couldn't see anything or select anything, I couldn't see his profile tab either; then when the cutscene started, he still couldn't see anything, including most audio, except for sound effects. He was able to see and control his character after a few minutes, but not consistently, I'm certain he was experiencing many more bugs than I was, because when I proposed a mission surrender, the notification didn't appear on his screen.
