@stefandoebrich We understand you are experiencing an issue where the SEO color indicator on your posts overview does not match that when you go into the edit screen of the page.
If you clear your cache (server, plugin/theme, browser, or CDN such as Cloudflare) does this resolve the issue? If you are not sure how to clear your server cache you should speak with your host provider. We have information on how to clear your browser cache at the following link: https://kb.yoast.com/kb/how-to-clear-my-browsers-cache/.
If the issue still occurs after clearing your caches, can you please confirm you are using the most recent Yoast v14.4.1? You can learn more about updating here: https://kb.yoast.com/kb/how-can-i-update-my-free-plugin/
Also, can you confirm you are using WordPress 5.4.2? You can check by clicking on the W in the top left and selecting About. If you need to update, please check with your host provider. Please know that if you are using an older version of WordPress Core you may experience unexpected behavior with Yoast. This guide explains more: https://yoast.com/why-we-dont-support-old-wordpress-versions/
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?If you update to the most current version of WordPress and Yoast SEO, does this resolve the issue?