I recently updated to the Ikonik theme to the newest version, so I’m not sure if this is part of the release.
On the portfolio page, when clicking on a post, it maximizes to view the material. However, before, it went to an actual page where you could read the details of the work. This isn’t seen any longer. Also, if the post is a standard post (i.e. not video, audio, etc.), the link goes to a page without content. This is because there is a /#/ before the post name in the slug. But, when that portion is removed, it is taken to the page with all the description, but the header, similar to the blog page, is showing. Before, that portion didn’t show.
Unfortunately it is not possible by default when ajax is activated, if the lightbox plugin doesn’t work you just need to disable ajax for that portfolio from Appearance > Widgets > Homepage Navigation Menu;