Board Thread:Support Requests - Getting Technical/@comment-44198230-20200608070542/@comment-1038387-20200608114040

That's still not a link. But that wouldn't display a caption because you never told it to display the caption. The only thing you put between the format tags is the self-closing centering. Not the caption. You need to put the parameter in there too. Have you read the help pages I linked? It's explained with examples on there.

Still, it's better to keep customizations of all your infoboxes centralized and easier to maintain with the CSS option.