PBR shader Graph node mix layers of SVG Image, what should I do?

Hello every one,
I want to create shader graph to have color and shadow of SVG images.
I use vertex color node in my shader graph like following:


every thing seems work for me except when I have SVG image with several layers, it won’t work fine.
6113351--665690--Screen Shot 2020-07-21 at 7.01.22 PM.png 6113351--665693--Screen Shot 2020-07-21 at 7.02.31 PM.png

layers of my image are mixed. I have found PBR master node doesn’t support height map and I was thinking maybe it is the issue. Could you please help me to fix this problem.

Hello again,I found the answer and put it here for those who are struggling
with this problem: