We would like to updated to the latest version of Cornerstone. Before doing this on our main site, we want to test it out. We set up a staging site to do this. However, the staging site is not allowing the Cornerstone update even though it’s available on the main site. Our X theme is up to date on the main site but not on the staging site, which seemed weird. I trying to validate it, but when I log in to Apex it appears to want me to purchase and additional license for X. How can I test the Cornerstone updates on my staging site first?