Incorrect value retrieved by TestComplete from Powerbuilder datawindow

I am using TestComplete 10.2 and my application is developed using Powerbuilder v12.0. The issue I am facing is with datawindow. I have a datawindow where there are multiple rows and multiple columns. The issue is TestComplete fetches incorrect value for the all cells of second row. Let's say I have three columns and two rows. The values for first row are 1,2 and 3 respectively. The values for second row are 4,5 and 6 respectively. When I use 'Object Spy', the 'Value' fetched for all cells of first row is correct. But, when working with second row, TestComplete fetches 1,2 and 3 whereas the actual values seen on the screen for second row are 4,5 and 6. Please find attached a screenshot demonstrating the issue.