Craftsman t210 not starting

I have a 2021 t210 that I was using yesterday. I shut it off to add gas, and check the oil. When I went to start it, it was "dead." No clicks...no hour meter display, no headlights (which usually come on with the ignition switch.
My battery is new (about a month old), and fully charged. I tested the fuse, and cleaned the already clean battery terminals. I also tested the switch, which seems to be good, but there was no power to it. Is it a safety switch? I would think I'd Still have lights and lcd display. It doesn't seem like a wire could have broken...
Does anyone have any ideas?

Thanks for your reply! I ran a jumper wire from the battery to the power wire at the switch, and it came to life and started right up. I "fixed" it by running a wire along the harness and spliced it in (after the fuse). I'm mystified about what actually failed.

That makes sense, but it seems strange. I'm not sure how it could have happened. All the others in the harness must be OK, sincere everything is working. Thanks for the reply!