This one stumps me:
On a family member's W10, Office 2010 (I think) machine, I set a paragraph of text in several fonts, alternately trying Arial, Palace Script, and Edwardian Script, and formatted a downloaded free clip-art image with wrapping behind text. In each case, when dragged behind the text, only in thin slices of the image appeared in-between the lines, but the image was otherwise blocked out.
I attempted to place the image in the header, and even tried the watermark function, with the same results each time. And here's the really surprising occurrence: I then copied the text and pasted it back in as a Windows metafile and still got the same result! I tried several images; none had copyright watermarks, though the behavior would not necessarily be affected by that anyway.

What's going on here?