Everybody is having issues with the timing, they are working on it. Please be patient. New things rarely ever work right at first, hang in there.
The green blotches are rendering lag. The green you are seeing is the underlying background color of the game that just hasn't been filled in yet. I usually see it with plowed fields. It's a small matter to grab your screen and move it so that those details are rendered, you would be doing that anyway if you are planting or harvesting.
