Hi @KevintheEditor - Thanks for submitting your bug report. We need a few more details to try to help with the issue.
As Neil has said there are some issues with the 50 series GPU. Can you try and fall back to Studio driver version 573.22 or 572.83
Can you right click on your files in premiere and choose media file properties, then post a screenshot. Are these HEVC files?
Can you check your screen recording link again I don't believe it is the correct link.
Sorry for the frustration.