LO Draw: can't copy & paste full block (cropping)


I have a strange behaviour of LibreOffice Draw from its 3.x version: when I select a block of drawing with rectangles on it and paste it to the Paint.NET (for example, the similar situation is with any other programs) I can’t see the bottom line of rectangle and the right one. I was hoping when someone ask this question but nobody did. Is this cropping a normal behaviour of Draw? Today I’m forced to make an empty text field in the right bottom corner and make selection with this empty field.