Not working in build

[BananaDjey]

Hi!
I would have used this great piece of work for one of my project, but I am not able to make it work in build.
Nothing happens.
There is an error if I don't add the Rain and Snow Shaders to the always included shaders in the graphics settings.
When it's done, nothing shows up.
Whatever, it works perfectly while in the Unity Editor.
Tested on several Unity version (2018.3.12, 2019.4.17 and 2021.1.9).
I'll keep diving in for a while. Nonetheless, any help would be appreciated.
Have a good day!

Jérémy

[BananaDjey]

I finally found the issue origin.
Using manually made materials from the shaders, it works in build.