What is your username? Are you an admin on the wiki you are asking about?
Wingstrike, yes I'm admin
Please link to the wiki (or the specific templates or pages you want help with) here:
What would you like help with (e.g. styling, making, or converting an infobox or making a page portable)? Finding a way to keep the automatic category code in the template so that it's recognised as being portable.
Any other information (e.g. links, screenshots, or snippets):
Please remember to purge the cache of pages. Doing that removed the infobox from the non-portable list.