AWS IOT Twinmaker - Model shader function is not working

I'm trying to change the color of a 3d object using Model shader, but the color is not changing. I'm using temperature as a parameter and have created a rule to change the color. Annotation is getting the data from the same parameter but model shader is not working. I'm doing the below steps.

In Scene Composer, select the object you want to add the model shader to, and then select the + icon and then Add model shader. You will see that the selected object has an additional panel in the Inspector where you can configure the entity linked to the object and the rule to apply.