Objects falls of the Moving Platform

Objects like the default cube with rigidbody will just falls to the ground if on the moving platform and then if I use the parenting method also the scale of the object will just change.

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it looks like your platform and cube colliders are wrong adjusted in the upper picture, causing the cube to fall through.

NVM just solved it.

I just used the rigidbody.MovePosition instead of transform.translate.