All 4 variants have a misprint. The word balloons were printed upside down and backwards on page 17 of the ‘Cons’ story. I’ve just gotten my replacements for the 2 I ordered, covers A & B
The barcodes, cover images, indicia and everything else is the same. On all the books.
My thought is that
#4E should be the misprint of #4A
#4F should be the misprint of #4B
#4G should be the misprint of #4C
#4H should be the misprint of #4D