I just noticed that XML sitemap is presenting all of the sitemap links as "http://default/" rather than the URL listed in the "default base URL" of the advanced settings for the module.
The URLs in the sitemap actually try to take me to http://default, or the appropriate non-existent subpage.
This error seems pretty critical, so I imagine it is something I did wrong with my site. Unfortunately, I can't figure out what setting I changed to create this error.
Thank you.