Why does foliage wind effect appear weird when raytracing translucency is turned on?

321293-rt-translucency.gif

Whenever i turn on Raytracing translucency, the wind effect in foliage starts to appear in doubles like in this gif.
And when i turn on “EVALUATE WORLD POSITION OFFSET” it gets normal. But that option is not available for Painted foliage actors. But i need Raytracing Translucency because i am doing an exterior project in which the building has large windows with glasses.
I have also noticed some problems with particle systems when raytracing is turned on. It would be great if i could get a solution for this. Please help. THANK YOU.

Try foliage actor to painting foliage it works great. For grass you need use foliage procedural volume.