Having multiple instances in my server of things burning down when I haven't been near them, or things burning down even though working ice flingomatics were placed.
Pictured: flings were max fuel and left for a couple days, but the base burnt down despite the flings still working fine..
Most recently my boat burned down after I had left it elsewhere for the summer. I hadn't visited it once.
I have no mods installed.
Play the game during summer, find things burned down later.