Cloth shading completely black in shadow areas when distance field ambient occlusion is active

I noticed while trying to use the new nice cloth shading feature of UE4.11 that the cloth shading result is completely black in shadow area when the ambient skylight is set to moveable (i.e when using distance field ambient occlusion). The behaviour is correct when the ambient skylight is set to Stationary (i.e without distance field ambient occlusion).
Is it a bug or do I have to setup something specific somewhere to avoid this problem?

Globally shadows are completely black, there’s no way to have any ambient lighting when the ambientskylight is set to moveable on objects using cloth shading.

Updated to 4.11.2, issue is still here.