Because I decided to make an account here... I should post this one as well.
Project Ozone 3, when you use a hammer on a block it will crush that block and give you a lower variant. Cobblestone becomes gravel, gravel becomes sand, sand becomes dust. You can also do this to the compressed version, a block of compressed cobblestone becomes a block of compressed gravel and so on.
When you do this in the game, it is supposed to consume the block that you crushed and give you the next tier. So you lose your sand, and get dust. Right now, it's not. It's giving you the block that you broke AND the block you're supposed to get next. So:
I lay down 4 stacks of compressed gravel, vein mine them with my hammer, I get 4 stacks of compressed gravel and 4 stacks of compressed sand. Works on all variations, cobble/gravel/sand/dust. As this is literally a free resource without the bug it is not a huge issue, but, I did figure that the issue needs to be reported. Something perhaps in the settings, because it didn't used to do this.