13 days ago - AndrewT - Direct link
What launcher version do you see? Current is 2021.10.1


Please try the following:

- unsubscribe from all mods in BOTH the Steam Workshop and the Paradox mod site mods.paradoxplaza.com
- delete the folder Documents/Paradox Interactive/CK3/mod/
- delete the file Documents/Paradox Interactive/CK3/mods_registry.json (if present)
- delete the file Documents/Paradox Interactive/CK3/launcher-v2.sqlite (if present)
- run the game up and check the launcher is okay with no mod or other errors
- subscribe to a few mods

- run the game up and see if those mods are now available to you.

I hope that does it for you!  
13 days ago - AndrewT - Direct link
You can't have a mods playlist after that, I don't think?

What launcher version do you see?