BP Sky Sphere has no effect to the scene

Hi guys, my BP_Sky_Sphere has no more effect to the scene. (things like Sun Brightness, Cloud Speed etc.) It looks like it has no more connection to the SM Sky Sphere. Also the Ambient Occlusion has no more effect to the Scene. Thank you very much for your help.

I have just tryed it, but it didnt work :-/. I Think there is a connection lost inside the Blue Print but I dont know where.

Hey there, have you tried deleting the instance you have and dragging a new one?

Did you change anything in the blueprint? You can try to open it and compile to see if there are any errors or warnings. You could create a new level and see if it’s working.