Hi. I didn’t find your video very informative. It’s too long, you don’t describe where the problem occurs, and there’s mostly sounds which should probably come from the center of the screen.
However, your problem could be related to the bug I describe here, which hasn’t been fixed yet, from what I know. Sounds coming from exactly below or above the listener (but offset on the left-right axis) are incorrectly hard panned left or right.