In version 4.15, the particle light is good.
From 4.16 the particle light is very different from angle to angle.
I have not found a solution by changing the setting value.
Is this a bug?
Ground material: Metallic: 0.7 / Roughness: 0.7
[In version 4.16 ~ 4.19, flickering occurs in view rotation.]
[It looks correct in 4.15.]
[In versions 4.16 to 4.19, it looks too bright depending on the angle.]
[particle light properties]