Hi All,
I got this issue because of the service pack upgrade . I observed that for the universe on which this webi is built has property changed for one class. The property was changed to hide. This happened to only one class(Surprise !!!!).This universe is built on BEx query.
So i had to unhide the class export it and delete the variables in the webi and recreate them, this solved my issue. This is a pain in the butt but i have no other solution. This issue occurred only for one universe and only to one class in the universe (Lucky me).
Regards,
Anil Vadde