Draw debug depth priority oddities

Came across a few oddities with draw debug.

DrawDebugSolidBox ignores the DepthPriority parameter and appears to always draw in World. In the screenshot the sphere is drawn on top of the mesh, the solid box is not.

DrawDebugSphere(GetWorld(), GetOwner()->GetActorLocation(), 30.f, 8, FColor::Green, false, -1.f, ESceneDepthPriorityGroup::SDPG_Foreground, 2.f);

DrawDebugSolidBox(GetWorld(), GetOwner()->GetActorLocation() + FVector::RightVector * 100.f, FVector::OneVector * 30.f, FColor::Green, false, -1.f, ESceneDepthPriorityGroup::SDPG_Foreground);
alt text

DrawDebugLine ignores the LifeTime parameter when DepthPriority is set to Foreground, but works fine with World or even Max

DrawDebugLine( GetWorld(), GetActorLocation(), GetActorLocation() + FVector::RightVector * 100.f, FColor::White, false, 1.f, ESceneDepthPriorityGroup::SDPG_Foreground, 7.f)

See attached UDN:
https://udn.unrealengine.com/questions/555334/draw-debug-depth-priority-oddities.html