Okay

How do I add a Gallery via the "Gallery" post format?

Since WordPress 3.5+ was released, post attachments worked slightly differently to 3.4, they are admittedly slightly more confusing so we've put together a quick YouTube video of how to do it in 3.5+... http://www.youtube.com/watch?v=e5Ky3lQbNAs&feature=youtu.be (no audio)

https://meanthemes.ticksy.com/faq/514/