Hey there,
Ive come up against this issue a few times on different websites. After working for a while in cornerstone functionality just stops. I can’t save my work, create new posts or pages, trigger any of the pop up that allow for text editing, or setting of elements to change. I am still able to move elements around on the page, but not add any new elements. The only way to get out of it is to refresh the page and lose the work. I don’t know how to describe this issue more effectively so i took a screen recording and uploaded it to youtube: https://youtu.be/5lImRwRZp6c
The problem doesnt happen consistently, but happens enough that i felt like i should mention it here.
Everything is up to date.