Some times players on my team or the other team will randomly be invisible. Also the letters for various things in game will be blocked out . Just last night our team had to leave a server because the entire aposing team was invisible out of our team of 4 only 1 could see players on the opposing team.
Invisibility glitch
FireWorks
(FireWorks)
#2
This is known already. Did you get sound crashes later in those rounds? My sound crashes sometimes but i think its only happening if theres an invisible player before.