What is the cause of bouncing cylinder when rolling on a straight surface?

Hi Everyone,
I m trying to develop a cylinder rolling game for mobile platforms. I have a problem with the rolling cylinder on a straight floor. It is bouncing when it moves for a while. There is no collision problem or protrusion, the ridge on the surface. You can check the screen record gif to understand clearly.
Gif Link

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Having the same issue, did you ever get this figured out?