[unity] SkeletonGraphic with Additive effect and CanvasGroup Compatible showing incorrect.

[Schrodinger123]

I'm using spine-unity-4.1-2024-06-19.
Left side I have a normal showing spine, and right one enabled CanvasGroup Compatible, disabled PMA Vertex Color, and the flash light isn't right.
I have done some searching and give it a try, like enable canvas group tint black and using SkeletonGraphicTintBlack material, none have solve my problem. And I noticed it's some like 3.8 version problem, is there some new feature like I can do now in 4.1 or other update?