Glitched and out of sync after exporting video!!!
My videos are glitching when they've finished exporting for some reason... I've done every possible export setting for this video and I've never encountered an issue like it in the past until recently. Once the video glitches, it proceeds to play the video with it's audio out of sync and I don't understand why, so I will provide an example photo immediately when it happened here;

I post my videos to YouTube and always go with these export settings normally;
FORMAT - H.264 > FRAME RATE - 29.97 (or 30 fps, 60 fps depending on video's original frame rate.) I also include 'render at max depth' and 'use maximum render settings', plus hardware encoding and VBR, 1 pass. I've cleared any media cashe/cashe files generally, and disabled XMP ID files to import just in case too. I've done several different settings, and even tried assuming the frame rate but that didn't work out either (I sounded like a chipmunk as it affected the duration of the video).
Do you guys think that this might have something to do with my computer components, as that can affect overall performance? I don't know if there is any different presets I can use to export my video, any ideas or advice to help export this video without any of these issues?
Please, help me! Thank you in advance.
