USD file with Material X shader tweakable in Unreal Engine 5 ?

Is it possible to edit or tweak the shader on a usd file , in unreal engine 5 ?
Currently whenever i tweak or make any differences in shader , its effecting the entire asset even with multiple shaders applied.
Eg , a Carrot , i tweak the shader of the leaf , but its changing the entire shader of the body and the leaf together.( Note : both are assigned with separate shaders ) I need to be able to tweak these separately.