Canvas disappears at build time (Windows)

My UI/Canvas completely disappears when I build and run my game on Windows and I have no idea how to troubleshoot this. Where do I start?

I’ve googled other issues and none seem to apply to my project. It’s just one simple scene.

Edit: If I select “Screen space - Overlay” for my canvas I DO see buttons that hover over my main ground area in my game. However, any buttons hanging off to the side in gray space are missing. Any idea why this is?

Maybe with different resolution its not visible?
Not using any scripts to hide/show UI?
Have screenshots?

Same with any resolution. No scripts dealing with the UI itself, just buttons that call functions. I just got the rest of my buttons to work by moving them above my playing field with “Screen space - Overlay” set. This isn’t going to work long.

Pics: Imgur: The magic of the Internet

  • Top pic are settings that work (Screen space - Overlay).
  • Second pic is the palcement I receive with those settings, which works and shows up in game.
  • Third pic is of non working “Screen space - Camera”. The big “Start” button doesn’t show up in the build, but does it in the editor when pushing play.

Any other thoughts here? Am I missing something obvious in terms of canvas placement or settings?