It has just been found that if the "Allow to appear in aggregation" option is not checked on the article publishing page, the feed list will not update this article.
Advanced options for article editing.jpg (5.63 KiB) View 20764 times
If you do not check this option on the personal settings page, the articles published later will not be synchronized to the feed by default.
Personal page composition settings.jpg (24.22 KiB) View 20764 times
If there are many articles that need to enable this option, you can use SQL code to implement it