Blank Video Recorded by Xbox Game Capture

Ah, okay then
Yes, seems like that's the reason. And I have one more problem because it keeps happening. When I play the recorded video, I can hear my voice, the game audio, but I don't hear any of my friends' voice chat. Sometimes I can hear their voice, but many times I can't. How to fix this? And what audio will be recorded if I check the "Record game audio only"? I've tried to turn it on and off but seems like it keeps changing.

I have not. Will it solve the problem? Because it doesn't happen that often, I'm not sure why it happened that's why I'm looking for the why.
Maybe because I haven't use Xbox Game Capture on PC quite long so I haven't that much experience. One time, I checked that I should update my GPU driver, then it's fixed. Today when I found out it happens again, I checked there's an update for Xbox Game Bar on Microsoft Store. Updated, and it works normally again. But still, I don't know the reason for the blank video, and I want to fix the video if there's any way.

Hi there fOXTROTjULIET welcome to the community forum! Christopher here, an Xbox fan just like you and has been on Xbox for years already. I would really love to make your day by helping you out. Have you tried uninstalling and installing the Xbox app?

I had this issue around a year ago. I could tell you all the 10 steps I followed to solve it, unfortunately what helped me to solved this was to restart my PC as it comes here:

https://support.microsoft.com/en-us/windows/rec...

In the part of Windows 10 click on "Reset this PC" these instructions will help you to solve the problem, you can even leave your important files!

You cannot fix already recorded clips unfortunately, if there was an update that gould be the reason for the inconvenience, your app wasn't updated.