Keepout area only for components, not for traces

[electricar]

Hey folks,

I want to create an area (on the bottom layer) in Altium in which it is not allowed to place components, but it should be allowed to route and place vias in this area.
I read about solving this with rooms, so I created a room in my pcb but it doesn't seem to work properly. I can place components in this area and no error is displayed.

Does anybody know if I'm doing something wrong here or is there another way for doing this?

Thank you very much in advance.

Cheers
electricar

[electricar]

Never mind, I got the issue...
I had something wrong in the box "Where The Object Matches".
Now I entered "OnBottom AND IsComponent" and everything is working like needed.