Hey there,

Unfortunately that was not possible to set specific category autopost to specific Facebook page in current system.

The current behaviour is when you allow those category can autopost to social media, mean it will autopost to what Facebook page you selected from backend Easyblog autoposting configuration page.

However, from what I've seen so far, this only posts to "one" Facebook page (the one I'm logged into).

Regarding with your issue, I believe you already report this from your previous post, perhaps you can try my colleague suggestion and see how it goes?

By right, it will retrieve all the Facebook page which your Facebook user account created those PAGE from your Facebook, you can refer on my attached screenshot below.

If the issue still persists, perhaps you can provide us with your following site details so we can help you check on this?
1. Joomla backend access
2. FTP access
3. Facebook user access which you use to authenticated with your Easyblog Facebook autopost setup.