We are unable to save changes to the design & custom template block settings on our site. We can make changes but both the save and cancel buttons are not doing anything. It had been working fine when initially creating the site, it was only recently when trying to make a change to a page that we noticed this problem. The only thing that I can think of that was changed between then and now was adding Cloudflare to the site, but I can not think of why that could be causing the problem.