Hi,
Could you please double-check that the redirect exists exactly as needed, including the full old URL with the language path (/de/) included?
Sometimes redirects don’t match properly if the full path isn’t captured, especially with multilingual sites using WPML.
Also, please try the following steps:
1. Permalink flush
Go to Settings → Permalinks and simply click “Save Changes”. This flushes and regenerates WordPress rewrite rules, which can help resolve redirect issues caused by permalink conflicts.
2. Clear all caches
If you have any caching in place (plugin-based, server-level like NGINX, or services like Cloudflare), please clear all caches, including:
* WordPress cache plugin (if used)
* Hosting/server-level cache
* Cloudflare or CDN cache
* Browser cache (for accurate testing)
3. Test with a dedicated redirect plugin
To rule out whether the issue is specific to Yoast SEO, please try setting up a test redirect using the Redirection plugin from WordPress.org:
[http://wordpress.org/plugins/redirection/](http://wordpress.org/plugins/redirection/)
Set up the same redirect there and see if it works correctly. If it does, it may indicate a problem or limitation within Yoast’s redirect handling.
Let me know what you find after these checks, and we’ll proceed from there.
