Clips recorded in Xbox Game Bar have a malfunctioning border when viewed in Premiere

[Argus5FD8]

As part of a class, I was able to download Adobe Creative Cloud for free. To get a feel for how Premiere Pro works before any mandatory projects start, I tried recording a clip from a game in Xbox game bar. The clip recorded completely fine.

(As seen in Windows Movies and TV)

When importing it to Adobe Premiere Pro, however...

As you can see, there is a noticeable difference between the two clips. I have tried encoding it in Media Encoder, and at smaller resolutions. Nothing has worked. I suspect its because of the resolution or aspect ratio, but I don't know how to fix it. Thanks to anyone who can help! 

Note: These clips were recorded on PC.

[Peru Bob · Accepted solution]

Please use the free MediaInfo and post a screenshot the properties of your media in tree view:
https://mediaarea.net/en/MediaInfo

Many users are having issues with VFR. If the file is variable frame rate, use Hand brake to convert to constant frame rate:
https://handbrake.fr/downloads.php
Here is a tutorial:
https://www.youtube.com/watch?time_continue=34&v=xlvxgVREX-Y

[Argus5FD8]

File Type: mp4

Attributes: A (no idea what that means but hopefully it'll be helpful)

Rec with: Microsoft Game DVR

[Peru Bob]

That is Variable Frame Rate.

Use Handbrake as I posted earlier.

[Argus5FD8]

OK, thanks

[Argus5FD8]

It worked! Many thanks to you sir

[Peru Bob]

You're welcome.