The line launched this week with Marvel Action: Spider-Man #1, and will continue December 26 with Marvel Action: Avengers #1 and then Marvel Action: Black Panther #1 on January 9, 2019.
Furthermore, all second issues will be returnable as long as retailers ordered 85% of their #1 orders. Issues #3 through #6 will be fully returnable if they match their orders from the previous issue.
So what happened?