Thread:Ckwng/@comment-26171095-20150413055551/@comment-25683568-20150413113133

I've not worked with tabber so I don't really know, looks like the wikitext within the tabber tags isn't what tabber expects though.

Try adding an entry point to Module:NanaminCombinedFleetTemplate that passes frame instead of frame:getParent, and subst a direct invocation onto a test page like this: new_entry_point. The page should now contain the result of your module as wikitext, from there on you can try to manipulate the wikitext to see if you can make tabber work and debug your module output that way. If the subst results in a working display from the start, then something's really wrong and it's probably something at the MediaWiki level (but I think the chances of that are very low).