Minifier doesn't work with Nginx (W3 cache – Version 0.9.2.6)

Hi, After the latest update to version 0.9.2.6, it seems minifier doesn’t work at all.

I get the famous message:

It appears Minify URL rewriting is not working. If using apache, verify that the server configuration allows .htaccess or if using nginx verify all configuration files are included in the configuration.

I can see it has www-data privileges to update this file:

/var/www/mysite/htdocs/nginx.conf

# BEGIN W3TC Minify core
rewrite ^/wp-content/cache/minify.*/w3tc_rewrite_test$ /wp-content/plugins/w3-total-cache/pub/minify.php?w3tc_rewrite_test=1 last;
rewrite ^/wp-content/cache/minify/(.+\.(css|js))$ /wp-content/plugins/w3-total-cache/pub/minify.php?file=$1 last;
# END W3TC Minify core

And in the main /etc/nginx/sites-available/default
the one above is included:
include /var/www/mysite/htdocs/nginx.conf;

So what could be wrong?

http://wordpress.org/extend/plugins/w3-total-cache/