removing the same code inside every post

Hello,

Since the code you want to remove is identical across all posts, the cleanest way to do this without editing each one is a bulk find-and-replace directly on your database. I’d recommend the Better Search Replace plugin (free on WordPress.org):

1. Install and activate Better Search Replace.
2. Go to Tools → Better Search Replace.
3. In the “Search for” field, paste the exact block string you want to remove:
   <!-- wp:latest-posts {"categories":[...],"postsToShow":100,"postLayout":"grid","columns":6,"order":"asc"} /-->
4. Leave “Replace with” empty.
5. Select the wp_posts table.
6. Run a dry run first (check “Run as dry run?”) to confirm how many matches it finds, then run it for real once you’re happy.

A couple of things worth flagging:

• The block code stored in your database uses straight quotes (") and standard dashes, not the curly quotes/dashes shown in your message — so make sure you copy the exact string from the post editor’s Code view, or the replace won’t match.
• If the block parameters (category IDs, etc.) differ from post to post, a single search string won’t catch them all. In that case you may need a few passes or a more flexible approach.

This sits a little outside GeneratePress support since it’s a core WordPress block, but the method above should sort it out.

• Back up your database first. Search-and-replace on wp_posts is irreversible.

This sits a little outside GeneratePress support since it’s a core WordPress block, but the method above should sort it out.

Glad to know you are sorted!