Switch between scenes

Hello,
When i switch between menu -> game -> menu -> game
The first time game works correctly but second time camera and ar not working.How can i stop ar and switch between scenes ?

 

I believe we're lacking quite some details to be able to give any help here...
Nonetheless, make sure you attach a "DontDestroyOnLoad" script to your go's managing AR. You want to keep the same AR objects/managers between all scenes and simply set them active or inactive. (enabled/disabled)

Thats about the best I can suggest without having any more information.

 

i removed DontDestroyOnLoad because i dont want to keep it all scenes.I dont need ar in main menu scene.Also all my objects in Ar Root so i dont want move my all scene level objects between scenes.

Another question:
Should i instantiate enemy,level objects under ar root ? is there another way ?

 

Well, you got me even more confused now
Here's a logical flow :
Splash scene with an ARController. The controller script is disabled and the go is DontDestroyOnLoad. The menu is directly loaded.
The menu has a button which loads the scene and enables the controller script.
The scene has a button which loads the menu and disables the controller script.

You keep the controller between scenes and enable/disable it as needed. That is how you :

Now I still have no idea what your new question is about, but the answer you are looking for is probably :
Should I instantiate enemy/level objects under an AR Root? Yes
Is there another way? Yes.

 

Thank you alex. What is the other way ? I dont want to pass all level and enemies between scenes.