What version of our launcher do you see? Current is 2021.6
Let's try forcing an update of the launcher.
Download the installer package: https://forumcontent.paradoxplaza.com/emailsignatures/2021.6-win-prod.zip
Unpack the file you just downloaded and place the three files in the Steam folder for the game you're having issues with. If asked if you want to replace already existing files click "yes" - that's a sign you are in the right place!
THEN:
- exit the Steam app entirely
- uninstall Paradox Launcher v2 from the Windows "Apps and features" utility, if still present.
Delete the following folders if still present:
- C:/users//AppData/Local/Programs/Paradox Interactive/
- C:/users//AppData/Local/Paradox Interactive/...
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