Unity UI Second camera doesn't show UI (world space)

Hi together,

hope you can help me:

I have two cameras rendering the same scene (from different angles and to different displays).
Inside the scene, I have some world space UI.
Both cameras have the same culling masks and configurations (except the target display).
Of cause the UI is inside the view frustums of both cameras.

But: The UI elements are only rendered by the main camera. The second camera (which renders all other things perfectly) doesn't show the UI.

I can't figure out what the problem could be. Maybe you guys can help me with some tips.

Best regards
Peter

 

After some more tests, it seems, that world space UI is only rendered on Display 1.
You can't set another target display inside the canvas (if it is set to world space). Of course it make sense, but I assume internally it is set to display 1.

Can someone else reproduce it?
Is it a known issue ?

I use Unity 2019.2.2f1.

Greetz
Peter