Autom8 doesnt automatically create graphs

[amitayb]

Hi,
I've created several rules in graph rules section.
I've enable in setting-->misc-->Enable Autom8 Graph Creation.

Now I expect graphs to be created automatically.
But they are not created.

when I go to devices, and use "apply autom8 rules to device" it creates all graphs as in the graph rules.
how can I enable it to create graphs automatically for exists devices?