Market Place License and Developer/Publisher Relation

We funded the development of a game and purchased some Unreal Market Place items for use in the game. We thought we would be able to publish the game under our game label but due to unforeseen events our developer is now going to publish our game for us. How does this work with store bought assets (game sound track and a few art assets). Does our developer/publisher now need to also purchase those licenses? Our company is in the game’s credits but consumer facing it will appear to be our developers game even if we funded it. What I am worried about is someone thinking the game doesn’t have a license for the assets.