when I try to share from the main (index) page, there is a bad title and URL being shared. Instead of taking both from the relevant post, as it does when you try to share from the single post page, it inserts generic site title and generic URL.
In other words, whatever post sharing icon you click by any post, you always get just the same info to share.
This is very incorrect. It should behave the same regardless of whether you click to share from the particular single post or from the index page with all posts.
Could you fix it, please?