Picture Won't Delete

I am working with a spreadsheet created by a predecessor and there is a picture at the top of one of the worksheets. When I select the picture and hit Delete, it seems to work, but the picture is still there. When I move it around the worksheet and resize it, a copy with the same name ("Picture 47") remains in the spot I moved it from. When I delete the resized/moved picture, it deletes, but the picture still remains in the original spot.

When I record a macro and select the picture and hit delete - or even when I move the picture and resize it - the recorded macro is blank.

Any ideas? All of the pictures seem to be named "Picture 47"