Server not saving map


i host a dedicated Rust experimental server on my server and setted up the configuration with the batch file.

My batch looks like this:

RustDedicated.exe -batchmode +server.identity "crew59" +server.hostname "Crew59 Rust | No Wipes" -load +server.worldsize 5000 +server.seed 592013 +server.port 28015 +server.saveintervall 600 +server.maxplayers 59 true -autoupdate

However, the server does not save the map after i shut it down with the “quit” command. Everytime I restart it again (with the same batch) it generates a new map and I don’t know why.

Does anyone have a clue?