I know this is confusing, but when you want to track multiple shows that are hosted on the same site, linking the Blubrry account to the WordPress site actually causes problems. Unlink the site to the Blubrry account and then go to the Other tab for each show in Category Podcasting settings and copy/paste the appropriate stats redirect URL for that show into the redirect field and click the Save Changes button. It's also a good idea to make sure Strict Categories is selected in the main Category Podcasting settings.