T.K. on Twitter: "Fixed locally a Freestyle crash in the #b3d 2.8 branch, and tested the revision with an old scene using Cycles.… "
Played a little with Freestyle :D: blender
Problems in blender freestyle. There are artifacts around edges which appear in the render but not in the preview in the 3D view. How can I fix this?: blender
A guide to Blender freestyle rendering with Eevee and Cycles - Artisticrender.com