I'm seeing this error message:
One or more problems were detected with your XML sitemap configuration:
The directory private://xmlsitemap was not found or is not writable by the server. See http://drupal.org/node/34025 for more information.
Some observations:
- The error message disappears if I switch to public file downloads
- filesystem permissions on the files/xmlsitemap and private/files/xmlsitemap directories are identical
- as far as I can tell xmlsitemap is working fine, the status report indicates a recent last generated time, and the sitemap appears to be up to date
- the sitemap.xml is accessible via a web browser
I'm thinking there may be an error in the permissions checking rather than the permissions themselves?