[ShaderGraph] Weird text and parameters keeps resetting.

Hello everyone. A newbie question about some weird messages that I'm getting on my character material.

1. I have two materials made from one shader (from ShaderGraph) on two different gameobjects. And the text (Instance) keeps incrementing when I run the game next to the material name Above is a screenshot while I ran three times the project. I was wondering if I was doing something wrong here or is this normal.
2. Also, when I try to have different parameters on both gameobjects, one of them just resets to original parameters when I run the game. Would someone know why ?

Thanks for any help!