how to set spring Camera sliding around blocking volume

Hello guys, I would like to ask for help with my camera settings. I have camera attached on a spring to the sphere, which gets the average position between the players. I want to set boundaries for my camera, so I created a blocking volume. With sweep set to true at Set World Location, this does the trick.
But every time my sphere collides with the blocking volume, it gets stuck and won’t slide around. I tried create physical material, but with no effect. I would like the camera to slide around surface.

Thank you for your help.