Does having a physical copy of the game and digital DLC have anything to do with no being able to access the DLC

My brother got the DLC digitally and has a physical copy and it didn't let him access the DLC through Miquella's caccoon. He's tried restarting the Ps5, restoring licenses, deleting the add-on and redownloading it. It may be the problem because when I checked "Mange Game Content" it said he didn't have anything even though the DLC is downloaded and all requirements for the DLC were met. Very disappointed and frustrated