Blog posts dissapearing when updating to dawn 15.3

Topic summary

A user upgraded their Shopify store from Dawn 7 to Dawn 15.3 and encountered an issue where blog posts redirect to 404 pages instead of displaying properly.

Root Cause Identified:

  • The menu configuration is not properly set up in the new Dawn 15.3 version
  • Invalid links in the menu are causing the 404 redirects
  • Screenshots confirm the menu discrepancy between the old and new theme versions

Recommended Troubleshooting Steps:

  • Verify that the same menu is being used in both theme versions
  • Check markets/languages configuration settings
  • Review translation app settings, as these may interfere with link functionality

The issue appears to be a configuration problem rather than a theme bug, requiring menu reconfiguration in the updated theme.

Summarized with AI on October 29. AI used: claude-sonnet-4-5-20250929.

Hi!
I recently updated a backup copy of our current theme dawn 7 to dawn 15.3. In the updated version, the blog posts seem to have disappeared. If i try to click on a blogpost in the preview mode of the new theme, I am directed to a 404 page instead of the chosen blog post. How do I make the blog posts connect back?

Thanks in advance!

Share a preview link?

https://ortfabriken.se/en?_ab=0&_fd=0&_sc=1

https://ortfabriken.se/

Here is the website with dawn 7.

Need to do this https://help.shopify.com/en/manual/online-store/themes/adding-themes#share-theme-preview

Oh sorry.. Here is the correct link: https://xh0am9y8r7xmldwg-34757607469.shopifypreview.com

Ok, I see that menu is not properly configured in new version – see screenshots:

Are you using the same menu in both themes?

New theme uses invalid links in menu, so you’re redirected to the 404.

Other things worth checking – markets/languages for which you’ve configured your theme and translation app – these may interfere with this too.

Can’t say more from the outside..