Page data not printed in smartform...

I have a smartform in which I want to print some data in the last page. So after the NEXT Page, I inserted the following nodes

1. Page node - LAST. Its next page is also set as LAST. The next page of NEXT page is also set as LAST.

2. Page window. window type - main window.

3. Program lines node. Here I fetch data from some tables a create an internal table with 2 columns of data. I am not able to debug this code during runtime and so I cannot confirm

if data is being fetched here !!! How to do that ??

4. Loop node - Here I loop thr the internal table populated in the program lines and store in a structure , say ST_TEMP.

5. Under loop node I have the TEXT node where I display the data as:

&ST_TEMP-COL1& &ST_TEMP-COL2&

Now the issue is data is not printed on this page. What could be wrong ? I tried inserting a hard break point in the program lines but control did not stop there.

Is there any way I can figure out what can be wrong ?

thnks