When you enter a YouTube URL to Facebook or Twitter, the video title, description, or thumbnail might be wrong or out of date.
Update the title or description immediately
Other people can share your video on Facebook and you may notice the video has the incorrect title or description. Enter the video URL in the Facebook debug tool and this will immediately update the cached title and description.
If you run into other issues, consider reporting the issue to Facebook.
Other people can share your video on Twitter and you may notice the video has the incorrect title or description. Enter the video URL in the Twitter Card Validator and this will immediately update the cached title and description.
Avoid this issue
Make sure your video is processed, public, and the video metadata is set on YouTube before pasting the video link on another website or app. Pasting the link will add the video info at that moment into the cache. Even if the metadata is changed on YouTube, anybody who pastes that URL before the cache updates will get the old info.
This issue happens when a YouTube video is added to a post before the video has finished processing. It can also happen when the video is private. You may have also shared the post before updating your thumbnail or metadata.
Sometimes, even after the video is finished processing and is public, it may still have an outdated title, description, or thumbnail. This issue will eventually fix itself once Facebook or Twitter updates its cache.