Issues with materials rendering semi-transparent

[GCM]

Hi,

Very new to Corona after using Vray for several years. I have a very simple scene that I have motion tracked the camera, added an image sequence to a Sky object and a Shadow catcher (connect to the Sky) to a plane (using the technique to making an infinity background) I am trying to composite the scene without using After Effects etc as I've done this using the Physical Renderer and compositing tags.

I've managed to get it to work roughly however I'm now getting any material I apply to the animated object becoming semi-transparent. I've checked all my materials and tried using basic white Corona material with the same issue. Is this something to do with the Shadow Catcher?

Any advice would be greatly appreciated.

C4D R20 / Corona 4
Mac Pro (Early 2009)

[Beanzvision]

Hi there, I think it might be best if you uploaded your scene file to us to investigate. If possible, the uploader link is in my signature below. Thx ;)

[GCM]

Hi,

I've just uploaded the scene to your dropbox. Thanks again

Geoff

[Beanzvision]

Thanks Geoff, please bear with us whilst we investigate it further.