drag and drop in instance, button on main timeline dos not play instance from beginning

hi - i created an mc with instancename subtraktiv that plays automaticly until frame 31. in frame 31 i have the actionscript for drag and drop for a mc named cyan2

here is the code in the timeline of mc subtraktiv :

this.stop();

cyan2.addEventListener(MouseEvent.MOUSE_DOWN, fl_ClickToDrag_8);

function fl_ClickToDrag_8(event:MouseEvent):void
{
cyan2.startDrag();
}

stage.addEventListener(MouseEvent.MOUSE_UP, fl_ReleaseToDrop_8);

function fl_ReleaseToDrop_8(event:MouseEvent):void
{
cyan2.stopDrag();
}

in the main scene is a button to replay the mc subtraktiv

here is the code:

button_1.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler);

function fl_MouseClickHandler(event:MouseEvent):void
{
subtraktiv.play();
}

the problem - when i klick on the button - it works - the mc subtraktiv plays again. but when i drag and drop the mc cyan2 and afterwards i click on the button to replay the mc subtraktiv - it does replay the mc subtraktiv but the moved element befor does not play anymore - it remains on the draged position.

why?

i say - play it again from frame number 1 where the element has its fixed place - why does it ignore it?

what am i doing wrong?

thanks for help !