Board Thread:Support Requests - Getting Technical/@comment-372573-20140622060207/@comment-856287-20140622215449

Heh, nevermind. I forgot to check for Javascript errors. The errors in your MediaWiki:Common.js appear to be breaking the scripts that should be running and loading those images. You can (and should) completely remove the collapsible content script in your Common.js. Collapsing is built into MediaWiki now. See Help:Collapsing. Your site will be faster too, since you won't be loading both the built-in MediaWiki collapsible code, AND your custom javascript for the same function on top of it.

Remove the highlighted part from MediaWiki:Common.js: