If your mod manager (Vortex or MO2) fails to download the file, try a manual download from Nexus Mods and drag the archive directly into your manager.
The current USSEP version requires the Anniversary Edition (v1.6+) and its four free Creation Club masters: Fishing, Rare Curios, Saints & Seducers, and Survival Mode. If you are using an older version (like v1.5.97), the download may fail or the mod will show "missing masters". can't download ussep
Ad-blockers or strict privacy settings can sometimes prevent download pop-ups on Nexus. Try disabling them temporarily or using a different browser. Xbox (Creations Menu) If your mod manager (Vortex or MO2) fails