Yes. I just reactivated WP Fast Cache and it had no trouble updating the .htaccess. Then I went in to tell it to cache the last 25 posts and pages and it did so. What’s weird is when I log in via FTP and look at wp-content/wp_fast_cache/<nameofwebsite>/<nameofpageorpost>/index.html, the index.html file is there but it is an empty, zero-byte file.