I’m also a MediaTemple user and just ran into this bug as well. I’ve never had an issue with it locally while developing or remotely (on Dreamhost or WPEngine).
I’ve renamed the object-cache.php
file and I’ll monitor the site to see if that fixes things. I assume that we’re effectively disabling the object cache by renaming the file… but does anyone know how that affects MediaTemple’s (or GoDaddy’s) cacheing overall?
(For example: I don’t know much about it, but WPEngine’s cache includes an object cache and a page cache.)