How to exclude a category from displaying on Blog page?

Thats odd - do they appear if you disable that snippet ?

No, they don't.
I suspect some kind of DB issue, as if the indexes aren't fine.
On the "WP Show Posts" Support page I talked about an issue I had in the Home. It turned out that the issues I had whilst saving (connection with the hosting) saved the entry badly - no idea how, but it wasn't showing at all (I have ONE featured post in the home - Italian version). I changed category, removing the correct one, updated the post and then I went back, setting the correct category and updated it: the featured article worked again.

But the Blog Post page is not managed by "WP Show Posts". I tried the same solution, but still they're not appearing, and it was happening even before activating the Code Snippet plugin.

That said, I checked on my cPanel for the hosting and the DB is fine.
Does it make any sense to repair it anyway, in your experience? (I have no idea if I can trust that system check.)

Thanks for your quick feedback.

Do you have any plugin or server side caches ? Maybe then need clearing ?

Hi David, sorry for the late response.
Yes, I use Total Cache. But I purged all the possible caches multiple times.
And I have the good practice to clean that each and every time I publish something new, because sometimes new content doesn't appear. But here are three different articles… No idea what's going on.

So the snippet wasn't the problem?

If so I'd recommend disabling all plugins and custom functions to test.

If you need further help with this, can you actually open a new topic?

Thanks!