From https://ck2.paradoxwikis.com/Steam_Workshop#Troubleshooting:
- Verify you haven't reached the 50 subscribed mods limit. - Verified
- Try subscribing to the mod in Steam client, while CK2 launcher is already started. - Steam downloads the mod but nothing happens in launcher.
- In case no download progress appears in Mod tab, check the setting for downloading while game is running (Steam -> Settings -> Downloads -> Allow downloads during gameplay). - Download does appear.
- Make sure you have Steam Cloud enabled. Note that Steam cloud sync appears to be broken for mods with capitals in user_dir. - I do have Steam Cloud is enabled for game and in general.
- Try restarting CK2 and Steam client. - Nothing particular happened
- Verify mod file and archive are present in folder ~\Documents\Paradox Interactive\Crusader Kings II\mod. If not, you can force a re-download of the mod by looking into C:\Program Files (x86)\Steam\userdata\<SteamUser>\ugc for files & folders referencing the mod (for instance 203770_subscriptions.vdf and \referenced\45371260977302539\mod\), deleting them and restarting Steam client. - They are not present, Steam redownloads the mods after deleting userdata stuff, but they wont appear in documents.
Also tried:
- Starting the game itself and closing it.
- Starting the game, waiting for several minutes and closing it.
- Resubscribing to every mod.
- Creating userdir.txt with C:\Users\MonstraG\Documents\Paradox Interactive\Crusader Kings II in it.
- Manually moving mods from referenced to documents. It does work, but with several mods updating every second day it is too tedious to be practical.
While I'm usually use Kaspersky antivirus, I've turned it off before trying all of the above.
- Verify you haven't reached the 50 subscribed mods limit. - Verified
- Try subscribing to the mod in Steam client, while CK2 launcher is already started. - Steam downloads the mod but nothing happens in launcher.
- In case no download progress appears in Mod tab, check the setting for downloading while game is running (Steam -> Settings -> Downloads -> Allow downloads during gameplay). - Download does appear.
- Make sure you have Steam Cloud enabled. Note that Steam cloud sync appears to be broken for mods with capitals in user_dir. - I do have Steam Cloud is enabled for game and in general.
- Try restarting CK2 and Steam client. - Nothing particular happened
- Verify mod file and archive are present in folder ~\Documents\Paradox Interactive\Crusader Kings II\mod. If not, you can force a re-download of the mod by looking into C:\Program Files (x86)\Steam\userdata\<SteamUser>\ugc for files & folders referencing the mod (for instance 203770_subscriptions.vdf and \referenced\45371260977302539\mod\), deleting them and restarting Steam client. - They are not present, Steam redownloads the mods after deleting userdata stuff, but they wont appear in documents.
Also tried:
- Starting the game itself and closing it.
- Starting the game, waiting for several minutes and closing it.
- Resubscribing to every mod.
- Creating userdir.txt with C:\Users\MonstraG\Documents\Paradox Interactive\Crusader Kings II in it.
- Manually moving mods from referenced to documents. It does work, but with several mods updating every second day it is too tedious to be practical.
While I'm usually use Kaspersky antivirus, I've turned it off before trying all of the above.
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