I’m running paper 1.17.1-353 and the world data only saves when shutting down the server. Playerdata is being saved correctly though.
Auto save interval in paper config is set to -1, and in the bukkit config it’s set to 5 minutes.
I have /save-on enabled and when I type /save-all, the timestamps of the world data are not updating. In the console it however says that the world has been saved.
When I /stop the server, everything is saving correctly though.
To be sure I removed all plugins from the server before testing this, and it’s still not working.