If only 18 out of 21 articles in your Webflow CMS collection are appearing on your website, there could be a few reasons for this issue. To provide assistance and troubleshoot the problem, I would need the following information:
1. Check the Collection Filter: Take a look at the collection list element on your website's page where the articles should be displayed. Ensure that the collection filter settings are not excluding any articles based on specific criteria such as tags, categories, or status.
2. Collection Item Status: Verify the status of the missing articles in your CMS collection. In Webflow, articles can have different statuses like Draft, Unpublished, or Published. Make sure the missing articles have the Published status to be visible on your website.
3. Collection Item Fields: Review the fields and settings for the missing articles in your CMS collection. Check if any of the required fields for displaying the articles on your website are missing or incomplete. Ensure that there are no conditional visibility settings applied to the elements that could hide the missing articles under certain conditions.
4. Pagination: If the collection list is paginated, check if the three missing articles fall within the specified range on the pagination settings. It's possible that the pagination settings are limiting the display to only a certain number of items per page.
5. Cache Issues: Clear your browser cache or try viewing the website in an incognito/private browsing window to rule out any caching issues that could be causing the missing articles not to appear.
6. CMS Item Limit: Confirm if the CMS items limit for your Webflow plan is being reached. If you have reached the limit, you will not be able to add any more items until you upgrade your plan or delete some existing items.
Providing these details will help diagnose the issue and allow for a more accurate resolution to get all 21 articles to appear on your website.