Suggestion
A couple tags might be helpful: Config or Settings and Branding restricted to the appropriate cat(s)
I first noticed how Bluesky was handling thumbnail months ago when starting the Repeal OBBBA effort. I monkeyed with images uses in admin/site_settings/category/branding but no joy. Other sites: X, Facebook, Reddit, Discord, mastodon all generated the thumbnail just fine so eventually I set the issue aside assuming it was one of the Bluesky quirks.
Same Discourse links on Bluesky and the other place.
I posted the issue on Bluesky using numerous Discourse instances to test things. Pretty much confirms the issue is on the Discourse side of things @pfaffman and @angus I posted links to your sites, please let me know if you would like the post removed.
Testing Bluesky post feel free to pile on.
I am hoping folks can help me sort what image needs to be added to Discourse to get very cool thumbnails on Bluesky.
I have a stock site that has no additional Branding beyond the initial build. Maybe someone can send the appropriate image and tell me where to place it.
