I am unsure if this happens on other synced video websites, but on the website CyTube the title of the first video will stay even after videos change. Clicking on it will link back to that first video, even though an entirely new video is playing. Maybe it's because it's the same embedded player swapping videos instead of a new page load like how you'd normally watch youtube? I can't say for sure, sorry. Only way to fix the title is to refresh the page, but then you just get stuck on whatever title you loaded into again.
I am unsure if this happens on other synced video websites, but on the website CyTube the title of the first video will stay even after videos change. Clicking on it will link back to that first video, even though an entirely new video is playing. Maybe it's because it's the same embedded player swapping videos instead of a new page load like how you'd normally watch youtube? I can't say for sure, sorry. Only way to fix the title is to refresh the page, but then you just get stuck on whatever title you loaded into again.