Maps and Refrations

[tom3dsmax]

Hello Guys, I'm using Corona Renderer, I have some problems with using refractive maps.
For example: put a black and white map in Refration as it is a glass luminaria, put a Corona Light is inside but is not generating shadow.
and oddly enough this only happens in the corona.
is that I'm doing something wrong or Corona Renderer really does not respect this process ?????

[romullus]

It works as expected here, unless i misunderstood your question.