Hi Damian-
It looks like you’ve disabled W3 Total Cache for now, so I can’t see the same behavior you described.
However, from the way you’ve explained it, it sounds like the issue might be minification of the JavaScript that controls your accordion sections provided by the Bridge Theme. This is a commercial theme, so I can’t test it out on my end, but I recommend disabling Minify to see if that resolves the issue for you.
If that does, you may want to consider purchasing a Plugin Configuration Consultation so our technicians can set up a manual minification profile for your theme. You can purchase this directly in the plugin from the Performance > Support menu.