I had problems with the dlc content as well. It said everything was installed but I only got the Remake music to show in-game. No costumes or extra weapons. I had to Navigate through the PS Store in the PS App as I couldn’t find where to go on the console. I pushed the Profile Icon on the top right then to Download List. I was able to download each item individually back onto my PS4. I’m not sure if that helps. Good luck.