Discourse comments are not reflected on WordPress blog (2025 version)

Continuing the discussion from Discourse comments are not reflected on Wordpress blog:

Hi. I’ve installed a fresh copy of Discourse 3.4.0 (4abee26a32) and WordPress 6.7.2 on my local PC for testing and I’m unable to get the comments to sync from Discourse to WordPress (though the initial post does sync from WordPress to Discourse). My issue seems to be very similar to the much older report linked above. Could this be a regression?

I’ve enabled all the logging, but this is all I see in the logs of my WordPress instance:

[2025-02-26 21:24:55] connection.INFO: check_connection_status.successful_connection  
[2025-02-26 21:24:55] connection.INFO: check_connection_status.valid_scopes  
[2025-02-26 21:28:49] publish.INFO: create_post.post_success {"wp_title":"This is a test","wp_author_id":"1","wp_post_id":7} 
[2025-02-26 21:28:49] publish.INFO: create_post.body_valid {"wp_title":"This is a test","wp_author_id":"1","wp_post_id":7} 
[2025-02-26 21:28:49] publish.INFO: create_post.after_publish {"post_id":7,"remote_post_type":"create_post","discourse_post_id":"34","discourse_topic_id":"16","discourse_permalink":"https://discourse.cs.siue.edu/t/this-is-a-test/16"} 
[2025-02-26 21:28:49] webhook_topic.INFO: update_topic_content.update_post_metadata_success {"post_ids":"7"} 
[2025-02-26 21:29:27] webhook_topic.INFO: update_topic_content.update_post_metadata_success {"post_ids":"7"} 
[2025-02-26 21:53:39] webhook_topic.INFO: update_topic_content.update_post_metadata_success {"post_ids":"7"} 

And this is all I see in the comments section of my WordPress post:

The count of responses increments immediately, but I do not see the actual comments. I’m also not seeing any errors in the system logs at /var/log/php-fpm/www-error.log.

Does anyone have any ideas about what might be causing this problem or how to go about debugging it? Thanks.