Unity built game resolution issue

Hello, So I’m trying to make a game in Unity, and everything is fine, the screen resolution on the Game and Scene view are perfect and well adjusted for every aspect ratio, but after I build the game, and execute the built version of it, the resolution goes crazy… Before executing the game, there’s an option to change resolution but all of them won’t work!

I’ll put screenshots to make things clearer.

Free Aspect Game View: working

Standalone: working

Built game resolution: not working

How can I fix this? Am I missing anything obvious here?

Thanks in advance.

Nevermind!

I fixed it.

All I had to do was add a main camera to the scene, I thought since I had the UI canvas I didn’t need a camera but I was wrong.

Now it’s all working perfectly.