Cornerstone is not letting me add a template to a new page. It tells me yes it is loading and at the same time says it is not going to load.
It has also caused issues with buttons that were not built in the classic button style. The new button formats just show a white dot with no name and when clicked take you the button destination but all the styling for the button itself is gone.
On some pages when I made certain edits in the HTML the entire page content disappears and I have to close it without saving to keep from losing all the content.