Wind Directional Source is not updated when changing values via blueprints

CL: 2306964
Link: https://answers.unrealengine.com/questions/105058/speedtree-wind-dir-source-actor-not-refreshing-fro.html
 
Description:
Cannot set the Wind Directional Source component settings via Blueprints or Level Blueprint.
 
 
 
Repro Steps:
 
Open UE4
Place a WDS in the scene and set to 0 for strength and speed
Open the Level BP and set the speed and strength to a higher value
Place a objects that uses wind (Cloth asset or SpeedTree Asset)
PIE.
  
Results:
The WDS is not updated with new values in the scene.
 
 
Expected:
You will be able to update the WDS via blueprints when you cahnge the settings.
 
 
 
 
ENVIRONMENT:
OS: Windows 8.1
PROCESSOR:  Intel(R) Xeon(R) CPU E5-2620 @ 2.10GHz
MEMORY: 32GB RAM
GRAPHICS: NVIDIA GeForce GTX 770