I bought the large EUIV pack from Humble Bundle last year, but most of the DLC that came with it aren't working for me. They show up fine in steam:
And they show up enabled in the launcher:
But in-game most of them just show up as "Not owned" in game:
I already tried doing a "clean reinstallation" by uninstalling the game on steam, deleting all the launcher files, and installing it again, but this didn't fix the issue.

And they show up enabled in the launcher:

But in-game most of them just show up as "Not owned" in game:

I already tried doing a "clean reinstallation" by uninstalling the game on steam, deleting all the launcher files, and installing it again, but this didn't fix the issue.