had this problem whereby on clicking crawl, it redirects back to the configuration page. Did a search on the forum and found a thread without solution on it.
I managed to solve the problem by removing my index.html redirect in .htaccess
Once the redirect is on the problem comes back. So right now i have to manually crawl for sitemaps after i have removed the redirect, manually remove the index.html from my sitemaps and than add back my redirect.
Hope admin can help solve this matter