Rotated Element creates issues with adorner

Question

I have a problem with my adorner which is supposed to preview the destination of my drag & drop operation,

everything is working fine until i rotate the adorned element.

My adorner is a rectangle which is filled with a visual brush of the adorned element, so if the element is rotated the adorner gets the correct (already rotated) image. But because the rectangle has to be rotated too the image gets rotated once more which isn't supposed to happen. Can I somehow exclude the brush of the transformation so it will not rotate again or is there another solution for my problem?

Thanks