overlap between scenes!!!

Hello

I have two scenes x and y, when i go from scene x to scene y in play mode some gameObjects move to scene y!!! and when i switch between two scenes gameObjects still not removed.

gameObjects is Instantiated and RigidBody and its have some scripts, i am sure that the scrips not cause the problem and i don’t use DontDestroyOnLoad() function on it.
plz help…THX

You ARE using DontDestroyOnLoad in your Start function…