Cannot interact with new scene

Hello everyone,

I only recently started working with Unity. So I am a bit out of my league here (normally work with C# for Windows Forms, WPF, ect. Visual Studio only).

I have a script that loads a level/scene based on its index. Using SceneManager.LoadScene(index). Now for my problem, on the newly loaded scene I have placed some buttons. But I can't interact with them. The buttons aren't highlighted when I hover over them, and do not trigger an "OnClick" event when clicked.

I build the level using the build menu and the index checks out. So I may be missing something, but I can't find out what it is.

My code to load a level/scene.

     public void LoadLevel(int levelIndex)
     {
         //Load the new scene
         SceneManager.LoadScene(levelIndex);
     }

If more information required, then please let me know.

Cheers!

Glucagon511