When replacement is created it will affect only future posts but there are already processed posts that must be fixed manually. Sometimes it's 3 posts, sometimes 100...

I tried to save all posts to a file and use notepad++ to fix in bulk, but it didn't work as planned.

Is it possible to learn this power Freddy?

Thank you.

There should not be such posts which you need to be fixed manually.

The replacements are there to make the fixes when post is being created (so you won't need to do anything later).

If you need some specific changes for some sites just add those replacements in themaPoster and they will be applied when posting to those sites automatically.