Grass does not seem to spread at all. When I dug lots of grass to create a project in my survival world no matter how long I'd wait, the grass would not grow back. I did some testing in a super flat world after, and noticed the same thing. No matter how high the tick speed was it would not spread, however every other entity (trees, sugarcane, mycelium, etc...) would grow extremely fast. Light is not an issue as it's on the surface and have always day on. But Im in a dilemma and dont know how to fix it.