Objects in the Unity3d, which can be seen in the scene window, are not visible in the game window

Objects in the Unity3d, which can be seen in the scene window, are not visible in the game window:

This is most likely due to an inconsistency between the layer of the object and the camera's culling mask, or beyond the viewable range of the camera.

If there are multiple cameras in the game, each camera has its own visual range and culling mask, when the object moves, it enters different cameras, and its visibility may vary depending on whether the object's layer is the same as the current camera.

Objects in the Unity3d, which can be seen in the scene window, are not visible in the game window