Test runs successfully with "run from selected operation" but fails if it starts beginning

In a keyword test, after clicking a button a popup appears. Popup has a textbox. During the run button has been clicked but textbox hasn't. After "Waiting For LargeText Box Object" message, "Preparing an object recognation hint" message appears for a long time. "Unexpected window" message seen in logs. When I run the test from popup clicking event it goes well, test runs successfully. I couldn't find how to fix it. I add delay before problem steps.