Trophy podium and confetti shooters in the middle of the pitch

hey, I’m a Playstation player based in Thailand. Today while i was playing a Ultimate Gauntlet 2 match, after halftime break, there were a set of confetti shooters and trophy popped up. It stayed there for the rest of the game. It never happened before so I assume that it was just a little bug but you could take a look at it so it won’t happen again for me and others. Thank you :)