Loader not completely successful

hi all,
I have my game swf called inside a fla with loader method.
The swf loaded completely, played well.Strange,when my player lost game , i mean for GameOver dialog box.It was playing well without any fault when i played my game swf individually, but when i called it inside a fla,its dialog box button is not working as usual.

Any possible guesses/suggestions/advices for such weird thing?