I have AutoCAD 2014 for Mac, and I have recently encountered issues with hatch. At first, some regions in my drawing were not responding to hatch and were freezing the program, while other regions were. It seemed arbitrary; I verified that all borders were closed, and it wasn't that the regions that didn't work with hatch were too large (some were very small). Then, after giving up and forgetting about hatch, I discovered that all my existing hatches had become invisible, and every time I tried doing a new hatch, they showed up as colorless. Again, I checked to make sure I was still using a solid white hatch, and all other settings seemed to be the same. What is going on!?