PS5 issue: DLC disappeared

I played through the main campaign with Moze. Finished it, activated mayhem mode, played through a little bit of the Handsome Jackpot DLC (finished the lucky foot mission). Quit out, went to bed, picked it back up, activated TVHM mode, hit continue, and the game started me completely over at the beginning of the campaign. I figured I needed to get back to Sanctuary, so I did. All the “!” quest markers showing the DLC posters in Sanctuary are gone. I no longer have access to any of the DLCs that I have the season pass for. I re-downloaded the content only for it to download PS4 versions and occupy twice the space on my SSD. What is the fix for this? Why did activating TVHM or mayhem mode completely remove my ability to play the DLC?