Yesterday I upgrade my iMac mid 2011 El Capitan 10.6 to Sierra. After that Blender behave strange. Today I unistalled Blender and downloaded Blender 2.77 and I think everything working OK.Maybe I need to wait to upgrade??
Yesterday I have Sharp Edges all over the eyes when I use Subdivision 2, but I dont use any sharp edges. Today I made a new eye and there is no sharp Edges, so far. Maybe the reson ar that I reinstalled Blender today. http://pasteall.org/blend/index.php?id=43688.