Hello
I am tested on 2020.1.0b9 BETA and 2019.3.11f1 with HDRP
I design a basic shader graph and assign it ( PBR Lit ) to basic code. I can see effect changes on the material window but material changes not apply scene or game view. The same shader works on
Power is 0
Set power
Changes, not applied
My shader graph
Shader Graph : Version 8.0.1
Core RP Library : 8.0.1
High Definition RP : 8.0.1