Far away from the center stage, error in shadows?

[Yue]

My player moves over a scenario of a flat terrain of 1024 x 1024, when this one is very far from the center the shadows present a strange flicker, like tremor and strange effects on the surface of the player. The effect is equally valid if you jump into the void and drop away from the center of the stage. 

Any suggestions?

[Yue]

Solved.

self.cameraPlayer:SetRange(0.001,1000) -- Problem.
self.cameraPlayer:SetRange(0.01,1000) --  Solved