For Switch enthusiasts, managing the "NSP" (Nintendo Submission Package) format requires attention to detail. To ensure the "new" DLC displays correctly in your roster, the base game, the update file, and the DLC unlockers must all be synced to the same version. If you install a Hero of Justice DLC NSP on an outdated version of the base game, the characters will likely appear as "locked" or cause the game to crash on boot. Future Outlook: Is Xenoverse 3 Coming?
If you are maintaining a local backup of your game (via legitimate cartridge dumping or digital NSP acquisition), the structure is hierarchical. You cannot simply drop the new DLC into your \atmosphere\contents\ folder without the correct "UPD." dragon ball xenoverse 2 switch nsp dlc update new