Far foliage instance mesh no shadow

I have foliage instance mesh as tress, in the level without play the shadow no problem, when I play the game, the shadow appear only if i am close enough about 20000. I change directional light settings as : Mobility : movable, DistanceField Shadow distance : 1,000,000, DistanceField trace Distance : 1,000,000, Dynamic shadow distance MovableLight: 1,000,000

I already added:
[/Script/Engine.RendererSettings]
r.Shadow.FadeResolution=16
r.Shadow.MinResolution=16
r.Shadow.TexelsPerPixel=3
r.Shadow.RadiusThreshold=0.01

Stil same, far about 600m the shadows disappear