Directional light not baking when shadows are turned on

Hey All

I have a problem with one of my scenes. It has one directional light set to baked. In render settings the ambient is black.

The prop is light mapped when the directional light is not set to cast shadows but as soon as i turn the shadows on it picks up none of the light and is just black. My objects have a second uv and static is turned on.

Anyone know what could be causing this problem. I am at a loss and my other scenes seem to be fine.

It seems the asset just bakes the ambient lighting when the shadows are turned on from the directional light. Why would it be doing this? Anyone have any idea?