Board Thread:Support Requests - Getting Technical/@comment-11413557-20140211115005/@comment-11733175-20140214003102

It's because there was space between the end of the navbox template and the start of the noinclude tags on w:c:helmet-heroes:Template:MainNavbox. I've removed it and it appears to work fine now. Normally, two newlines will create the problem you've observed.

The reason there was a difference between the two pages is because there was a category between the navbox template and the end of the page on the second page, but not the first. You an only see this is you disable all catgeory tools in Special:Preferences.

I have no idea why a category would suppress the newlines (it really shouldn't), but it does. It's something for the MediaWiki developers to muse over, rather than us mere users ;)