Video bouncing on it's own

Lately I’ve been experimenting with uploading bytes at a resolution of 720x1440 to get the fullscreen view.

I’ve noticed that when it’s the first one on my profile page it tends to start bouncing on its own.

Not a big deal for me, as I usually manage to make it stop. Just thought I’d share in case this is more common or affects other parts of the app too.

[Android beta - Oneplus 7T]