Xbox Game Bar can't screen record Minecraft on full screen. Fix

Hello, RantMan13. Thanks for reaching out! My name is Lucas, and I'm an Independent Advisor and a Microsoft user just like you. I'll be happy to assist you today.

Does the Xbox Game Bar not being able to record the screen of all games or only Minecraft?

• If nothing happens when you press the Windows logo key
  + G, check your Xbox Game Bar settings. Open the
  Start menu, and select Settings >
  Gaming and make sure Record game clips, screenshots, and broadcast using Xbox Game Bar is
  On.
• If Xbox Game Bar doesn’t appear for a full-screen game, try keyboard shortcuts: Press the
  Windows logo key + Alt +
  R to start recording a clip, then press it again to stop. You’ll see the screen flash when the recording starts and ends.
  

Troubleshoot Xbox Game Bar on Windows 10

I did everything but still not recording. I can take screen shot with game bar but can't record video.

Im pressing button but nothing happens

Hello there!

If you have used Xbox gamebar to record you can try checking this link in order to resolve your issue Use a screen reader to record your screen with Xbox Game Bar (microsoft.com).

em... My laptop enjoys the same display with yours, 1080p 125%. Even i scale it to 100%, game bar works fine with no black screen issue. But I didn't use it to record gameplay but some other activities... If you can't fix this error, try some other slick
game recorders for Windows 10? Here are some top picks: https://www.recmaster.net/how-to/top-game-screen-recorder-for-windows

Fix problems with Xbox Game Bar on
Windows 10. If nothing happens when you press the Windows logo key + G, check your
Xbox Game Bar settings. ... If Xbox Game Bar doesn't appear for a full-screen
game, try keyboard shortcuts: Press the Windows logo key + Alt + R to
start recording a clip, then press it again to stop.