Light Problem when particle spawn

Hello guys im using unreal 4.9.2
Im trying make endless runner project and making my parkour asset…Everything normal when my character run
But when im using particle effect or other things my screen goes black. And spawned objects(my map parts) have a problem with light ? Im using *skylight–*Directional light–*atmosfericfog.Thanks for answers…and sory for my bad english

Hello there. See if disabling AutoExposure for your project fixes this (Edit>Project Settings>Rendering>Default Settings>Auto Exposure uncheck).

Thanks bro! its work!!!