Some URL's failed to give thumbnail URL

HI,
I'm using this into my project and some of the facebook and instagram URL's doesn't give thumbnail URL while they are working fine over facebook/instagram.
For example look at this URL
https://www.facebook.com/AlaskaDroneRacingLeague/videos/524910794717886/

It gives no thumbnail url and if you create post on facebook from the same link it shows a thumbnail URL. can you look into it ?