Open graph is not accepted by twitter or discord

[piotrpog]

Hi!
I'm not sure if it is a problem with plugin or something else, but my website open graph is not accepted by twitter or discord. Heres example page:
http://craftsnippets.com/articles/matrix-within-a-matrix-possible-solutions-for-craft-cms

And here's twitter post with this link - it wasn't expanded into open graph image:
https://twitter.com/PiotrPogorzel/status/1297969538017955840

I tested my website with facebook open graph debugger and it seems ok:
https://developers.facebook.com/tools/debug/?q=http%3A%2F%2Fcraftsnippets.com%2Farticles%2Fmatrix-within-a-matrix-possible-solutions-for-craft-cms

edit:
after few minutes, open graph appeared on twitter, some maybe there's nothing wrong after all. But heres link to discord where link was not expanded:
https://discord.com/channels/456442477667418113/456445573097324555/747527997644472441

[aelvan]

Hi,

Not sure I understand what you mean with ...it wasn't expanded into open graph image. Looking at your tweet, I can see the card for your article.

It also appears to validate In the Twitter card validator at https://cards-dev.twitter.com/validator.