When sharing an article from griffon.media to ok.ru, the photo from image_src or og:image is not picked up?

Question

Classmates

Hello.
We moved the site griffon.media to https, when sharing articles, photos from og:image or image_src were no longer picked up. What could be the problem and what are we doing wrong?
url for example griffon.media/articles/13/9/2016/russia-belarus-el...

Answer 1

There is a suspicion that the site does not respond quickly enough, so the picture does not always have time to load. We succeeded the second time https://monosnap.com/file/p9XA88W24xPLhoR8rMGpp2D2...
By the way, try specifying http in og:image