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World Save Not Loading After Update

Tags: save, update, corruption, troubleshooting

If a world loads before an update but fails after, treat it as a compatibility or corruption issue.

Immediate safety steps

  • Back up the entire save folder before trying any fixes.
  • Copy serverconfig.xml and any mod folders for reference.
  • Disable auto-updates if you need to roll back a version.

Try a version rollback

  1. Use the Steam beta branch to match the old server version.
  2. Load the world and create a fresh backup.
  3. Follow the save migration guide before updating again.

Going from V2.6 stable to the V3.0 "Dead Hot Summer" experimental branch (Steam beta branch latest_experimental) is a major version step, not a routine patch. Saves do not load backward across the branch, so a world opened on V3.0 will not reload on a V2.6 server. Keep a pre-flip backup before opting in, and confirm the client and server are on the same branch - a mismatch shows up as an invalid version error, covered in Version Mismatch.

Repair corrupted regions

  • Check logs for a specific region file error.
  • Delete the referenced .7rg region file to regenerate it.
  • Warn players that changes in that region will be lost.

V3.0 made this failure far more common, and finding the one bad r.x.y.7rg by hand from a log line is fiddly. The free 7 Days to Die Region Repair tool reads your Region folder in the browser, checks every region file for truncation or corruption, and rebuilds a clean save that drops only the unrecoverable regions (regenerated on next load) while keeping every intact one - so you lose one chunk instead of the whole world. Nothing is uploaded and your original is untouched.

When to start fresh

  • If the core world data fails to load, a new world is faster than repeated repairs.
  • Import prefabs or POIs manually if you need to preserve builds.

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