Roots Theme not working with WordPress seo from yoast

I can’t get WordPress seo from yoast to work with my roots theme on 3 different sites, I have the latest roots build and the latest version of WordPress seo Version 1.4.15. There are no other plugins installed on my site. I’ve tried updating my .htaccess file, it looks like this now:

# WordPress SEO - XML Sitemap Rewrite Fix
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^sitemap_index\.xml$ /index.php?sitemap=1 [L]
RewriteRule ^([^/]+?)-sitemap([0-9]+)?\.xml$ /index.php?sitemap=$1&sitemap_n=$2 [L]
</IfModule>
# END WordPress SEO - XML Sitemap Rewrite Fix
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteRule ^assets/(.*) /wp-content/themes/roots-master/assets/$1 [QSA,L]
RewriteRule ^plugins/(.*) /wp-content/plugins/$1 [QSA,L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

but this only get’s rid of the 404 error still doesn’t update if I index posts or pages.

Please help http://johanjvrens.co.za/sitemap_index.xml

http://wordpress.org/plugins/wordpress-seo/