Platform: Playstation 5

Game type: Coop

Character affected: Bunker

Issue: 

1. Started a coop game. I am the host.
2. My friend joins my session and we have progressed the game to a certain stage but did not fail yet.
3. We have both collected up to 8 cells which can be used for upgrading the characters.
4. We both quit the game
5. We both went into our individual Saloons and bought upgrades. 
   1. I am using Sweeper and I unlock my first chip slot
   2. My friend is using Bunker and unlocks his first chip slot
6. Progress for the changes doesn't seem to get saved and when I wake up the next day to continue to the game, all the purchases I made were back to default and I still have my 8 cells.
7. My friend decides to coop with me again and somehow the first chip slot that he purchased (For Bunker), shows that it has been unlocked but at the character he is unable to equip the skills which he has already unlocked.

We are unsure how to progress at this stage and he has decided to switch to another character until you have fixed this issue.