Category links generated by Autoblog feeds have 404 error

I'm not exactly sure if this is an Autoblog issue or WP Multisite issue (although I'm leaning toward it being a WP issue). When I bring in a feed, the posts all display just fine, but when clicking the category link provided in the post list, I get a 404 error. The category does exist and I can visit it, but WP is adding "blog" to the slug (as they call for in the docs) which kills the link. Removing "blog" from the slug corrects the problem, but the posts are generating the link with "blog" inserted. Any ideas on how to resolve this?