Hi, I'm in need of a little help with the Twitter Cards? Previously they worked fine, but sometime this month things apparently changed. A few of the cards on our twitter still work, but most now pull up blank images. I've tried the Validator again and everything comes up green:
INFO: Page fetched successfully
INFO: 27 metatags were found
INFO: twitter:card = summary_large_image tag found
INFO: Card loaded successfully
Etc. It says the URL is whitelisted, but when it fetches the Card to show that it's working still it comes up grey/blank.
Here's an example of one that should work but isn't. http://www.allyouranime.net/the-promised-neverland-020-022-review/
We recently had a severe hotlinking problem, so we turned off hotlinking/and blocked Google spoofing crawl/metabots, but I wouldn't think those measures would affect Twitter Cards. Some help would be greatly appreciated. This issue doesn't seem to affect when we post the same stuff on facebook.