New Blog Templates option doesn't get updated

I'm using New Blog Templates for creating my sites, but all the created pages are showing up as [Blocked by super admin]
The option for that is this one
But even with it disabled, it seems like the setting's always taking effect So I contacted WP engine and their support asked me the following
"Can you tell me the name of the cookie when this setting is enabled/disabled so we can search for it and clear it? Thanks"