The latest posts block prints the block comment on the front when the full post is enabled #69427

Activity

1. carolinan

   added

   [Type] BugAn existing feature does not function as intendedAn existing feature does not function as intended

   [Block] Latest PostsAffects the Latest Posts BlockAffects the Latest Posts Block

   on Mar 5, 2025
2. coder-rancho commented on Mar 5, 2025

   

   coder-rancho

   on Mar 5, 2025

   More actions

   I was not able to reproduce this issue even after downgrading the version to 6.7.

   Screen.Recording.2025-03-05.at.3.03.13.PM.mov
3. carolinan commented on Mar 5, 2025

   

   carolinan

   on Mar 5, 2025

   ContributorAuthor

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   Are you looking at the source code? Its not part of the video.
4. karthikeya-io commented on Mar 5, 2025

   

   karthikeya-io

   on Mar 5, 2025

   Contributor

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   Yes, I too can see the block comments in FE

   <div class="wp-block-latest-posts__post-full-content"><!-- wp:paragraph -->
   <p>Welcome to WordPress. This is your first post. Edit or delete it, then start writing!</p>
   <!-- /wp:paragraph -->
   
   <!-- wp:heading -->
   <h2 class="wp-block-heading">test</h2>
   <!-- /wp:heading -->
   
   <!-- wp:image {"id":67,"sizeSlug":"large","linkDestination":"none"} -->
   ...
   <!-- /wp:image -->
   
   <!-- wp:paragraph -->
   <p></p>
   <!-- /wp:paragraph --></div>
   
5. coder-rancho commented on Mar 5, 2025

   

   coder-rancho

   on Mar 5, 2025

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   I looked at the source code. I'm able to reproduce the issue.

   (This is not a regression in 6.8)

   • I'm able to reproduce it on Wordpress:6.8 as well:
   • I'm able to reproduce the issue even after deactivating the plugin:

   This seems like a issue with core and not with Gutenberg plugin.

   Screen.Recording.2025-03-05.at.4.20.55.PM.mov
6. westonruter commented on Nov 7, 2025

   

   westonruter

   on Nov 7, 2025

   Member

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   I'm seeing this too, thanks to @sabernhardt.

   This issue becomes more pronounced in 6.9-beta4 because classic themes start to load block styles on demand (via Core-64099). Since the content for the posts listed in the Latest Posts aren't run through do_blocks(), it means the styles for those blocks never get loaded on demand. For classic themes up until 6.8 this wasn't an issue, because they were configured to not load styles on demand, meaning a stylesheet for the Cover block will be added to the page even if it isn't used. This was already the case for Twenty Twenty-Five:

   Expected	Actual

   As of 6.9-beta4, the issue appears in classic themes as well:

   Expected	Actual

   Reproduction steps:

   1. Create a new post called "Cover Block" with a Cover block as the first block
   2. Create a new page called "Post List" and add a single Post List block configured to show full content:

   <!-- wp:latest-posts {"displayPostContent":true,"displayPostContentRadio":"full_post"} /-->

   3. View the "Post List" page on the frontend. Notice the HTML output has the block comments present. Note also how in T25, the Cover block is unstyled. In contrast, in T21 in 6.8, the Cover block appears styled, whereas in 6.9-beta4, the Cover block appears unstyled. The lack of styling is due to the absence of the wp-block-cover stylesheet from being enqueued (and the wp-block-library is loading common.css instead of style.css).
7. github-actions

   assigned

   carolinan

   on Feb 27, 2026
8. github-actions

   added

   [Status] In ProgressTracking issues with work in progressTracking issues with work in progress

   on Feb 27, 2026
9. carolinan commented on Jul 10, 2026

   

   carolinan

   on Jul 10, 2026

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   I have retested after the merge of #74866 and this has been fixed.
10. carolinan

    closed this as completedon Jul 10, 2026