Mirror material ?

I am having problems creating a mirror material in Unreal 4.

I have put the metal input to 1, and roughness to 0, and it sorta works, but it looks like there’s a horrible artifact as the reflection transitions between the cubemap and screen space reflections (or at least that’s what I assume how the two types of reflections are created).

I have also tried setting both 2d and 3d screen capture “actors” so I can capture the result to an image, I can’t get the resultant image to appear as a proper “deep” reflection that is dependent on the camera angle.

Has any one done this yet ? all help suggestions greatly received.

W-Jones

PS unreal 4 is simply fantastic, its a joy to use many thanks epic !!