Ladybug Sunlight Hours Analysis Not working

Hey guys,

I'm currently doing my thesis project and Ladybug seems to be letting me down. 

I'm currently looking at micro-climates in sub level sites(i.e. a quarry in Ireland).

My 3d model is quite complex and i think this is the problem, as it works with a much simpler geometry.

It seems to register that the surfaces dont recieve any sunlight or very little, which is not true. 

i've attached the 3d model and the grasshopper script and a picture of my results. if anyone could help it would be much appreciated.

here's a link to dropbox for the files as they exceed the 5mb limit.

https://www.dropbox.com/sh/fqof66hg85q5qfe/AADmAkKd6FDIykgY5wGGJkbn...

Best regards,

Paul