[Resolved] Translation of taxonomy labels and slug ignore WPML's default (source) language setting making manu...

Problem:
You are trying to translate labels, slugs, and attribute taxonomy options using WPML, but the translation interface does not consistently show the WPML default language (German) as the source. Instead, the globe symbol appears under the English flag, making it untranslatable. You have to manually change the language to German, and the label text is shown in English, not the source language.
Solution:
The default language in WordPress is typically English, depending on the language in which WordPress was installed. To resolve this issue, you need to adjust the source language for the taxonomy labels and strings. This adjustment will enable you to create your translations effectively. It is crucial to ensure that especially the slug is translated, regardless of the source language displayed.

If this solution does not apply to your case, or if it seems outdated, we recommend opening a new support ticket. We also highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, please visit our support forum at https://wpml.org/forums/forum/english-support/.