Is there a reason why my Webflow navigation instance (burger menu) is not updating in preview or when I publish the site, even after trying multiple browsers and clearing the cache?

If your Webflow navigation instance, such as a burger menu, is not updating in the preview or when you publish the site, there could be a few reasons for this issue. Here are some possible causes and solutions:

1. Check for CSS conflicts: Ensure that there are no conflicting CSS styles overriding the navigation instance. Sometimes, existing CSS styles can interfere with the updated design. Inspect the element using the browser developer tools and see if any conflicting styles are applied. If so, update or remove them to see if that resolves the issue.

2. Verify the correct navigation element: Double-check that you are updating the correct navigation element in your Webflow project. It's possible that you might be modifying a different navigation instance, or there may be multiple instances that need updating. Make sure you select and update the correct element.

3. Clear Webflow-specific cached assets: Webflow has its own caching system, separate from browser cache. To ensure that you're seeing the latest changes, try clearing Webflow's cached assets. In the Designer, click on the "Project Settings" tab, navigate to the "Hosting" section, and click on the "Clear All Cached Files" button. This will clear any cached files on Webflow servers and may reflect the updated navigation on your published site.

4. Publishing issues: Sometimes, publishing issues can prevent the updates from being visible on your live site. To troubleshoot this, try unpublishing and re-publishing the project. Additionally, ensure that you are updating and saving your changes before publishing. If you're making changes in the Designer, be sure to see the changes there before republishing.

5. Browser caching: Although you mentioned that you have cleared the cache in multiple browsers, it's worth mentioning that browser caching can sometimes cause issues. Try opening the site in an incognito or private browsing window to see if the updated navigation appears. If it does, then you might need to clear the browser cache more thoroughly or ask your visitors to do the same.

6. CDN cache: Webflow uses a Content Delivery Network (CDN) to deliver assets quickly. Occasionally, changes may not immediately propagate through the CDN. In this case, clearing the CDN cache can help. In the Designer, click on the "Project Settings" tab, go to the "Hosting" section, and click on the "Clear CDN Cache" button. This will refresh the cached assets and potentially display the updated navigation.

If none of these solutions resolve the issue, it's recommended to reach out to Webflow support for further assistance. They will be able to investigate the specific problem and provide guidance to resolve it.