Board Thread:Support Requests - Getting Technical/@comment-34805154-20200725135154/@comment-32704847-20200725201612

I've fixed it for you. There was a problem with the file name. If you place a link to a file that does not exist anywhere outsite the infobox, the link becomes red, so you can easily know what to do (upload a file or fix the link). But when this happens inside a PORTABLE infobox, the portable infobox simply ignores the tab with the bad link, not giving you any error message.

Next time a tab does not show up, you can do a fast test by deleting all the code around the  tags, and clicking to preview. There you'll see the red links. Then you put all the code back in place with Ctrl+Z and fix the bad links.