Server autosave switches

I’ve created a v1.69 dedicated server and have set it to autostart when the hosting server starts, using a scheduled event. I want the server to autosave the game state very occasionally, and to load the autosave when it starts. So I’m using the two switches -autosaveinterval 60 to save the game every hour and -load 1 to automatically load the autosave at start.

However, when I look in the saves folder, there is no file. Nor can I find a .sav file anywhere in the server folder structure.

What am I doing wrong? Or, most likely, is there something I’m not understanding about server saves?