Unity3D: scene A -> AR scene (run ok)->scene A again->AR scene(error)
when i came to AR scene(error) again
1. my screen is black, but i can still track cloud images, coz i got track succeed info from xcode console.
2. my UGUI "back to scene A button" disappeard too.
3. this project works fine on editor mode, but when i run it on my pad, that error appears.
4. if i use unity change to ARScene, it will be ok, but now i need to use xcode to call UnitySendMessage, that error appears.
i've no idea about that, should i need release sth before change scene? help~~