Rounded corners not working on build

[assyrian00]

I use and set the rounded corners through script whenever I try to use the rounded corners after the build it breaks my project, it works as perfectly in runtime, works perfectly whenever I attach them using prefabs but whenever I build the projects after attaching the rounded corners with the script it does not seem to work, I'll attach to the screenshots bellow:
runtime:

build:

the prefabs use the script to the left and the whenever I attach it through script it uses the right one [external]:

an example of the UI instantiation:

[Bian-Sh]

你可以尝试着将 shader 放到 always included shaders 列表中