Sideview Camera: howto ignore colllision

In a side-scroller project the SideViewCamera zooms completely in when a piece of non-colliding debris is being launched between the camera and the player. So when I have an explosion of debris the camera will zoom in and out really fast…

I have the same problem when a pillar (or whatever) is between the player and the camera. The camera will automatically zoom in. This is obviously not desired behavior for a side-scroller. I want the player to walk behind the pillar obviously, and without the camera going all crazy on me.

But I could not find any option to disable this.

MyCharacter> Component Mode > Springarm1 > Uncheck: DoCollisionTest