I have a different explanation, but pls find confirmation by yourself if i am right or not.
The first one is an auction with a picture of the real book on sale, the second one is an auction where the seller didnt upload any picture so that ebay picked up a "stock photo" which in this case is a veeeery old mock up of the
MM cover built on the already released players hb.
It happened to me a similar experience with the oriental adventures for 3E: i used to find two different covers on the auctions but at the end all the sellers confirmed me that the stock photo was not correct...
Hope it helps ciaoo