If you catch the ball as goalkeeper during the goalkeeper's invulnerability period, and you leave the game, the ball will remain completely still and impossible to move for the players who remain in the game, freezing the scoreboard.
This bug is very easy to do and you only need to score one goal to win matches in a super unfair way.
I don't have a video, just a screenshot of my friend clipping with the ball. I don't want to repeat the bug so as not to bother more people and make them lose matches unfairly.
If you want video proof, I could do it with a friend in a private match and show it to you 🙂