The second core keeps having the ball disappear after one of us scores a point, making the upgrade useless :(
thank you, this is a bug I am working on. In reality it breaks when you watch the ball score. It gets nervous from all the attention and can't keep playing, returning to the main menu, loading, and then making sure not to watch the non-root instance score, makes sure it keeps working in the background. patches are coming soon, and this time you can backup your saves! yay!