Hi there, we are having exactly the same issue.
If i disable Cornerstone and then reactivate it the page loads, but only once.
I’ve tried this with plugins on and off as well.
Only started happening when updated the plugin yesterday.
Any ideas?
We are at the point where we only have your plugins active now.
Cornerstone will not load.
please see attached img.
http://prntscr.com/bi6n0c
We are using Siteground’s private cloud server. Super cache is off.
Any idea why Cornerstone will no longer load?