"Remember original URLs when moving pages" was active, but "Automatically update page alias" was not.
This is a portal site, yes. The change was made to the "Page Alias" field on the "URL" properties tab of each folder, and an alias was generated automatically.
The structure of my site looks like this:
- Parent Directory (folder)
The alias change was made to the "Parent Directory" folder, but did not effect the child folders or pages.