Cannot go fullscreen by dragging a app in mission control Steps I'm doing:


4 Fingers up to open Mission Control
Dragging any app to the top (e.g. Finder)
Nothing is happening it is not going full screen. 


Did I do something wrong on settings and never noticed? I cycled through many boots it seems like a permanent thing.

How can I fix this?
This can be solved by enabling Displays have seperate spaces in System Preferences (Found under Mission Control). Then logout and log back in to apply the setting.