the app is not detecting in my oneplus phone

[Tamim Hadi]

Hi Nick,
I follow the instructions and placed my android_model in the asset folder directory then, I have deployed the app in my oneplus phone, and everything is working fine, no errors during running the app, so once I hit on Dubug or run and make sure my device is selected, it will start install all the dependencies then the app will pops up in my phone and open to the camera, but when I test it, I dont see any detection labels. do you consider the problem is in the "developer option" configuration in my phone something may be missing to enable? Or maybe because of my labels are very big?
I would highly appreciate it your help. Thanks