Object style export / import. Default styles do not seem to be included.

So I have been working on a master captivate project course (1) for a while (cap9).

I've created many styles and named default styles for each object.

I exported the object style manager in completion. (File>Export>Styles).

I started a new project course (2) and import the styles. The styles are in the new project (2), but the specified default styles from project 1 are not my default styles in project 2.

Am I doing something wrong or am I expecting the export/import to do something that it is not designed to do?