Arcore no track world


First, sorry for my bad English

In my project the Arcore tracked world fine, and i do not know why now my phone no track the world. I can move the camera in rotation but when i move in the real word the camera not move in the unreal engine scene.

I think something was disabled in my phone, because when i test the HelloAr, there is same bug.

Someone can help me

Again sorry for my bad English

In fact, the googleArCorePointCloudRenderer, not track the real world so i not show the blue point color