There were animals nearby, probably including pigs, but I'm can't be 100% sure.

Are pigs accidentally converting grass into millstones or something? haha

I couldn't see anything to explain this in any of the patch notes - I found a millstone randomly out in the wild and I cannot explain it (though certainly not complaining about being gifted it lol). https://i.imgur.com/lzdH7Lf.png I'm on the latest CE 2.14 Cursed Fabric release and haven't noticed a...

Thank you for taking a look. Glad it wasn't something I'd managed to instal incorrectly. :)

I've just updated to CE 1.3.7 from B0000003 and the first thing I've noticed is the grass is not using the grass texture but rather the dirt texture with the grass over the top. I vaguely remember this happening in the past with a particular MCPatcher or CTM option and I was able to disable it - I'm...