WEBI Report doesnt show any data but the query preview has results

I created a WEBI report. It has about 1000 rows of data. Now, I wanted to edit the report. I navigate to the query window and the preview shows the results. I refresh the query but the data is not displayed in the WEBI report. No data at all. I tried to drag and drop the objects, cannot do that as well.

Environment

SBOP 4.0 Platform SP2

IE9 browser

Can someone help?