After some investigation on BasePassPixelShader.usf and MobileBasePassPixelShader.usf, I found that Mobile Indirect Diffuse lighting missing View.IndirectLightingColorScale.
The document says it will work in mobile renderer without HDR and tonemapperfilm.
https://docs.unrealengine.com/en-US/Platforms/Mobile/PostProcessEffects
Actually it won’t work in mobile.