How to reproduce:

1. Refresh the page.
2. Once the page finishes loading, click the button.
3. Watch for where the video first appears, look for it appearing in the cetner much smaller than the container before it re-renders to take up the full container.
4. You may need to repeat these steps a few times before you first see it.

When does the bug happen:

Intermittent issues:

Unfortunately, even when following the steps above, this issue is still intermittent. Sometimes it doesn't happen, and sometimes there will be long stretches of it not happening.