Roll-a-Ball can't move a ball precisely

Hi, UE5 newbie here.
I’m making super simple roll a ball game by watching this video
(UE5: How to make a rollerball game - YouTube]

But I don’t know why the ball does not move as shown in the video even when I turn on simulation physics of ball. Maybe because the ball is too light?, it floats easily when I move the floor. I mean it blows up out of the field.
I have also increased the angular damping value of the floor and a bit the weight of the ball.
How can I fix this? :sweat_smile:

I also captured scene on my Youtube [Roll a Ball problem... - YouTube]
Thank you in advance