Troubleshooting Hatches
1. Check if Hardware acceleration is the cause. This will also give you insight into the graphics hardware type and driver version. Please note that the “defaults” are not always the ideal settings
2. Check if the default hatch scale is too dense
3. Make sure the view is not twisted (rotated or rotated in 3D i.e. not looking straight down) Command: PLAN > (Enter) > (Enter)
Source: Autodesk