Hello

For setting category name and description in many languages, you can use:

[[category:categoryName1]] and [[category:categoryDescription1]]

And then your categories will have a different name and description for every lang. That is OK.

Problem is with meta description on viewing category:

<meta name="description" content="&amp;lsqb;&amp;lsqb;category:categoryName1&amp;rsqb;&amp;rsqb;" />