Hello,
I have recently updated x-theme and cornerstone to the most recent version. This has caused my portfolio page and my essential grids not appear on the front end of the website when I am not logged in as an admin. The error I receive says something regarding jQuery not being a valid function. I have reverted my website to the older theme in the meantime, but I just wanted to bring this to your attention and see if this is something common for other users.
Thanks