The problem is, that the `onDragStart`, `onDragEnd` and `onDrag` are binded by the class. I can't modify them in any way. I can't modify the Draggable creation.
The only thing i get is the instance of the object, with the dragInstance, on drag-start and on drag end.
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Okay i see this point. But why it is working on the second try and afterwards ?