My wife bought me a dozen Supersoft balls for Christmas of 2021 and I finally started using them recently.
One ball, I was using it and noticed a whizzing sound after impact. I took it out of play, but never found anything wrong with the ball. Still have it but have not used it since.
Today, I was playing the same ball I have used for a few rounds now (hence how scuffed up it is), but I was setting the ball down to putt and noticed this: