TypeSystem Test for a derived concept is not working

Hi,

I have a base concept A and A has a typesystem rule which throws error on that node A .

I derived B from A and the same typesystem rule is applicable for B also. I am very happy about it.

But when I write a node test case with concept B instantiated and now node<B> has the error shown in the editor but the <check node for error with rule reference of A> is not running at all and throws the "No Runnable Methods Exception".

Do anyone have any idea about it?

Thanks in advance.

Regards,

Dinesh