Still no Emerald Dawn?

Just because a book isn’t creator owned doesn’t mean the creator’s don’t get royalties. This is a big reason why the old Showcase Presents series didn’t reprint a ton of modern material: there were issues with the contracts for alot of those issues because it specified flat fees that would have made publishing low price point trades unfeasible. Chances are good that there is a combined problem based on the contract and the creator in question’s legal issues.