Clipping plane visability issue

Hi all,

I’m currently having this issue when looking through a clipping plane where the geometry behind the clipping plane is showing though even when not being clipped – see attached image.

Is this an issue of having geometry that isn’t solid/closed or is there an option I can use to get rid of this? It seems to occur when you are looking at a backface through the clipping plane.

Any help would be appreciated.