The issue is unfortunately not fixed for me either. I noticed a weird behaviour when the scroll stops working. If you scroll on a stuck tab, you won't see it, but if you switch to another tab and then go back to the stuck tab, the scroll that you did before switching will have been applied.
This obviously doesn't fix subsequent scrolls, but I mention it in case it can help figure out what the issue is.
I've had it happen on YouTube and GitLab.