That happens from time to time. They will likely fix it if notified. I can't quite recall which one it was but I think one of the planescape products I had had a random map page from another product.Kind of a strange thing. I just bought the AD&D 1E Forgotten Realms Campaign Set. For some reason, one of the three PDFs in the set is GR3: Treasure Maps, an accessory for AD&D 2E.