Why EasyRender command stopped creating shadows in Catia?

I was Rendering few parts by using EasyRender in Catia V5 and everything was going perfect but I dont know how it suddenly stopped creating shadows.
I was changing light positioning and ambient, diffuse, specular and shadow softness for almost every part so I dont thing that changing those affected the render not to create shadows.
I dont know whats the problem but now shadows are not appearing as you can see in screenshot, I also uploaded a rendered file before and after this problem..
Please help me troubleshoot this. Thanks

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