GX-Entwicklung

1. go to Shop Settings > Zone / Tax > Languages
2. create a new language, choose the checkbox 'copy language', fill out all necceassary forms, hit create

result:

• the newly created language is also a default language
• the already exiting languages (english and german (default)) can't be edited anymore
• there is no way to make the falsely default labeled new language to non-default or to delete them, at least in the backend
• if the admin logs out and in again, the backend menu is missing and further text-cache issues emerge, the frontend is also affected, see screenshots
• if Toolbox > Cache is called by the URL and all caches are cleared, the menu reappears
• this seem sto be an old issue, it can also be found in e.g. 3.11.3.0