Why sometime the collision & rigid looks doesn't work correct?

Thank you all to reply,
Looks like a complicated problem. I just have found a post has the same question & in the very similar Pin Ball game project. :sweat_smile:

BTW @LeXXik Where can I use the following codes?

app.systems.rigidbody.fixedTimeStep = 1/120;

app.systems.rigidbody.maxSubSteps = 20;

Any guides can show me how to use them?