Increasing the scale of a skeletal mesh actor with Capsule Shadows set to true causes the shadow to appear chunky and broken.
Regression (No), feature was not present in 4.10.4.
The 2.0 scaled skeletal mesh's shadow appears broken in comparison to the 1.0 or .5 scaled meshes.
Shadow appears as a larger version of the 1.0 scale without breaks in the shadow.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-30952 in the post.