'Changing the way you share', giving you an experience you have never had before...
It works in all cases. The possible problem is that you are not using 'http' or 'https' protocols.
The Google bots take sometime to refresh the contents. I depends on your site status. I might take a day or a month.
I may happen sometime because Facebook script is delicate and 'sometimes' time-out before the rendering (seen on slow connections).