If a Youtube or other link image thumbnails are not showing up when the link is pasted on a Facebook status, use the Facebook Sharing Debugger.
1. First, copy the link and paste it on the text field.
2. Click on "Debug".
3. Click on "Scrape Again".
4. Refresh the Facebook page for your status.
5. Paste the Youtube link again.
And now it should be fixed!
Samuel Garcia helps entrepreneurs, small business owners, and hobbyists succeed in using the Internet to increase their business.