**System Information**
Operating system: Win 10 64 bit
Graphics card: GTX 1080 ti
**Blender Version**
Broken: 2.80, 12da679fa094, 2018-06-16
**Short description of error**
Contact shadows cause weird light shafts to appear around occluded objects.
{F7549335}
**Exact steps for others to reproduce the error**
.blend showing problem: {F7549337}
# Create a cube with a hole as the window
# Create an area lamp outside the cube shining light in
# Add an object on the floor of cube near the window.
# Turn on contact shadows
# Weird light shafts should appear around object on floor.
{F7549338}
I've tried making the cube walls thick, or adding large objects on other side of the wall. But the problem persists.
I know there are many limitations of eevee that can cause light bleeding. But this is persistent, leading me to think it's a bug.