I have developed a WordPress website using a Child Theme, I started with Twenty Ten as the base, then I created a new and improved version with Twenty Eleven as the base and some new features, now I have done it again with Twenty Twelve as the Parent theme.
The new features are working mostly great, except when viewing certain pages on the site it wants load the Stylesheet, etc. from the previous (Differently named, Twenty Eleven child) theme. Why?
Observe the home page (header, menu, sidebar, etc), then click on the "CLASSES" or "FIND WINE" link to see what I am talking about.