The game/screen recording was recorded with Streamlabs OBS, though this happens with files created in any way.
Here are the settings in Streamlabs OBS: https://i.gyazo.com/c8a48a8ad015b4aa50fcfb6cdae0c188.png
The file type is currently flv but had the same issues when recording in mov and mp4
Which makes it even weirder since it's not just one source of video but 3 different devices. (PC, gopro, canon) I have other editing programs and putting the same files in them I get no problems at all. The video is fine, but i don't use those programs.
The file you sent back goes into VP no issue. It works smooth, no artifacting.
This fishing video I took of my dad on the Gopro did the same thing in VP and it smeared etc, did the reboot song and dance a few times, gave up, came back a few days later and oddly the file works fine. I've even pulled the file itself (it was in a project) into its own project to test if it'd glitch, and even did so just now, and the file works still. I have no idea why it appears to 'fix' itself at random, and for random files. http://www.mediafire.com/file/j52c242pmkdfjzv/GH010185.MP4/file here is the file if you want to take a look at it as well. Its a 1 min clip off the gopro.
Again, thank you greatly for the help I know this is a weird issue and I appreciate the time taken.