The server starts a new "world" folder instead of my uploaded map — how do I fix it? — Minecraft

Q: How do I know `level.dat` is in the right place?

Open the world folder in the Files tab — you should see level.dat listed right there, alongside the region folder, not inside another subfolder.

Q: Do I need to delete the empty world first?

Yes — remove the auto-generated empty world so your uploaded folder can take its place cleanly.

Q: It still generates fresh terrain — what else could it be?

Check that level-name in server.properties matches your folder name, and that the upload completed fully via SFTP.

The server starts a new "world" folder instead of my uploaded map — how do I fix it?

When you upload a map and the server boots into fresh terrain instead, it means the server couldn't find a valid world where it expected one. This is almost always a folder-name or level.dat placement issue, and it's quick to fix.

Why it happens

The server looks for a valid world at the folder named in level-name (default world), with level.dat directly inside it. If your map's folder is named something else, or level.dat is buried in a subfolder, the server assumes there's no world there and generates a new empty one.

Step-by-step fix

Stop the server.
Confirm your map folder is named exactly world (or matches level-name), and that level.dat is directly inside it — not nested like world/MyMap/level.dat.
Delete the auto-generated empty world folder.
Re-place your map correctly and start.

Tip: A common cause is a double-nested folder after unzipping — e.g. world/MyMap/level.dat. Move the contents up so level.dat sits at world/level.dat.

Frequently asked questions

How do I know level.dat is in the right place? Open the world folder in the Files tab — you should see level.dat listed right there, alongside the region folder, not inside another subfolder.

Do I need to delete the empty world first? Yes — remove the auto-generated empty world so your uploaded folder can take its place cleanly.

It still generates fresh terrain — what else could it be? Check that level-name in server.properties matches your folder name, and that the upload completed fully via SFTP.