I'm trying to figure out what's going on with my grazing. My auroch cows grazed fine on the surface grass. When I popped the first cavern, I noticed that my below-ground peat floors were not growing grass as usual (though shrubs and fungiwoods were growing there). In the cavern itself, there was grass, so I pastured my auroch cows there. They quickly got hungry - they did not move to the grass, the grass did not disappear from being eaten, and they got their hungry down arrow. When I moved them back up to the surface they grazed fine. Any thoughts on what's wrong down in the caverns? I have cavern flavor turned off, if that might be related.