I can’t tell exactly how many of these issues are on my host to blame (EasyWP), but Cornerstone has become nearly unusuable.
My homepage is rather large, and it has become very frequently failing to save. I have to try saving my edits three to ten times for one of them to finally work, and this last time it just wouldn’t save no matter what. I cleared my browser data, changed my browser altogether and increased the PHP memory limit from 128M to 256M.
Smaller pages successfully save instantly, the homepage is the only one giving me trouble. And every time I get the save failure error there’s a big chance that all markup in the CSS tab will disappear from the server side. This means that although the CSS code is still visible in the page editing window in my browser, it’s no longer on the site (upon reloading the main page) and reloading the editor will return it without any of the CSS (a completely blank CSS section). I would have to restore an older version of the page when that happens. However, as of today, most times I try restoring an older version I get a 502 error.