Board Thread:Support Requests - Getting Technical/@comment-31066810-20180418043906/@comment-9605025-20180418172050

For tabber to work, you need to use the template. Otherwise, the interpreter will think you are trying to specify another template parameter rather than specifying another tabber tab. That being said, it is better to use galleries with portable infoboxes as doing so maintains the portability of the infobox.