I have the exact same problem which is why I am going through the process of building it in android studio which I rather not have to do. Please is there a fix to this. It works fine in the browser but not in the App.
Thank you for sharing your concern on AppMySite Community.
For the camera to work on an Android app, the camera and photo access need to be enabled in the app permissions before the app build is generated.
If the camera still won’t work in the app, kindly raise a ticket with our support team so we can loop in our technical team to diagnose and resolve the issue with your app.
Feel free to raise a ticket from the Help section towards the top right of the AppMySite portal. We will be happy to assist.