I have tried a lot of the solutions presented on this site and cant figure it out. I have tried to see if cornerstone is updated but whenever I click on cornerstone from the X menu it just loads infinitely so I cannot see what version it is?
It seems that you have updated Cornerstone to the latest version but left X with an older version. Kindly update X as well. Here is a link for a details information on how to do an update:
Please remember to clear all caches when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors or any unexpected display issue on the site.