Is this a Powerbuider 9 bug or not?

I need someone to verify whether I have stumbled upon a Powerbuilder 9 bug or not. We recently migrated to Powerbuilder 9 from 8. I ran my application from the executable, Opened a report and then I opened a screen from the report. In this screen, there is an icon we have always used to change statuses for the cases that we work on. When I did that, the application took me back to the report which was unusual. We have not done any code changes to the screen and I can't understand why it would start now.

I then tried to debug the problem and when I run the application from Powerbuilder, the application works as it always done. This left us thinking there might be runtime bug in Powerbuilder or we might be missing a dll or something.
Can anybody help?