When I build and run my app in an emulator very little of the UI actually shows up

So I’ve been using unity to build an app for someone and have a base idea of it working, my one issue is that what works in unity doesn’t work the same as when I build and run the app in an android emulator.

This is what it looks like in unity,

And this is what actually shows up when I build and run the app,

So far I’ve tried a lot of stuff with the scaling of the canvas including a scale with screen size and constant physical size but still get the same result, the main camera for the scene is set up in the render mode of the canvas and I’m not really able to find a specific solution to the problem I’m having, many tutorials cover building apps but nothing about how to properly build and run it.

Here are the options I have selected for the main canvas, anything you guys can do to help will be great.

I’m honestly stumped here.

Hello! Are you using UI Toolkit? Because with UI Toolkit we don’t use the Canvas, that’s why I’m asking.
If you are using UI Toolkit, try closing the UI Builder and re-importing the UXML should fix it, we currently have an issue under investigation about some modifications done to the file by the UI Builder that causes the built version to have layout issues.
If you are using UGUI, then I suggest asking at this other forum where you’ll probably get more help: Unity Engine - Unity Discussions

Moving thread to correct forum…