Returning Control back to the application under test

In my test, i have to click on a submit button on a pop up window which closes the pop-up window. I noticed that the button is being clicked but for some reason, Test Studio is still searching to click the button. I modified the waitonstepinterval to 30,000 millisecs but that doesn't work either. I toggled the step to continue on failure and the next step continues successfully. It looks like the control is not being returned to the application under test. How do i fix that?