Why doesn't my translucent mesh receive shadows?

My transparent material/asset is not receiving lighting after baking lighting. However it for some reason does
work when I swap between stationary/static when the lighting is not even built.

I have a feeling it may be a simple solution but I cannot find one anywhere. I have attempted a couple of the recommended “fixes” on the forum but none seem to work. I can’t understand why I can get the result I want when I have stationary/static selected on my direction light before the light has even been built. However like I said after building the light it then vanishes once again.

Thanks you