ARCORE Template?

When I build for android ASTC, with the ARCORE template and install on my Samsung S8. My entire screen becomes black except for the debug menu, when pressing stop/start AR. I get the error message "Start/Stop AR failed.

Anyone know what i’m doing wrong or how to get ARCore working?

Do you have ARCore installed on the device?

yes arcore is installed. we’ve build and installed multiple ARCORE applications made with unity on the device.