There appear to have been a few changes twixt solicitation and publication for Marvel Comics titles, currently approaching Final Order Cut-Off. So retailers get the chance to amend their orders based on the new information.
Star Wars: Mace Windu #4 was solicited with art by Denys Cowan but he will be joined by Edgar Salazar.
Peter Parker, The Spectacular Spider-Man #298 and #299 were solicited with art by Adam Kubert but he will now be joined by Juan Frigeri on both issues.
And America #10 has a complete change, solicited with art by Joe Quinones but will now be by Flaviano Armentaro and Jen Bartel.