Child Template Not Inheriting Changes from Parent

[planck]

Anybody knows why the child template is not inheriting from the parent template?

I have change the logo through ACP > Styles & Themes > Style Manager > Style Variable Editor > Image Path > Title Image

The logo is showing in the parent template but It is not showing in the Child template

As a matter of fact, all changes that i have tried on the Parent template are not showing in the Child template

Any solutions?

Thanks in advance