In those numbered folders, you will find another numbered folder that contains sub-folders. If it still does not show up, the following steps will reset the download: If it does not, repeat steps 3 though 5 once again. The mod should now appear in the Launcher.
Play as any country for 10 to 15 minutes.Deselect ALL mods in the Launcher and start EUIV.Once the download as finished, quit Steam and restart it.If you have subscribed to the mod in Steam and it fails to show up in the EUIV Launcher, the following steps should make it appear: