I created a 3 second toon for the sole-purpose of seeing what kind of problems I'd encounter. And right off the bat, as soon as I uploaded it to YouTube, a few of the frames get "stuck", aka, just acting a little glitchy.
https://www.youtube.com/watch?v=b_JnxHbLmSk
See how when the character goes down, his head just sticks? Why does that happen? How can I fix that? FYI, it's not like that at in the original timeline.
Bonus question: Why does the exported video have fuzzy/bad sound quality? How do I fix that too?