[plugin:LangSwitcher] Translating Tags

Hello,

I’m using the plugin “languageswitcher” https://www.poplarware.com/index.html to translate tags.
Everything is working fine, but the tags are not translated correctly on a catpage.

On a catpage it will simply output
[lang_en]text[/lang][lang_de]text[/lang_de]

I found out that it has NOTHING to do with the code in my template. The gettext on the category page might be buggy or it would properly translate it because the same cloudtag is working on the front page.

I can offer some money if anyone can find a solution for that.. it has to be in the wp core files no doubt.

Thanks for help,
Oliver