Hi, I am changing the color for the header of child row using cells:functions(). It is working fine after rendering table first time. However, when I am collapsing all the parent rows and then expanding again then CSS is getting applied to different cells also. Could you please help me to resolve this issue.
Source Code: https://jsfiddle.net/59n8auhb/2/
After first load : 
Collapsed rows : 
Expanded rows with error : 