When scrolling through the vertical video feed, the video that's actually playing (audio/progress bar) doesn't match the video frame currently in view. It looks like scroll position and video-element assignment are getting out of sync — likely because the scroll snapping isn't locking cleanly to each video container, so a partial scroll leaves the wrong item's video controls/progress bar visible while a different one plays underneath.
tiktok scroll
Thanks for the detailed report! I’ve forwarded this bug to the team so they can look into it. We appreciate you taking the time to report it.