[Plugin: WordPress SEO by Yoast] After update to 1.1.5 page.php and page-{$slug}.php templates ignor

After updating to 1.1.5, all of my pages were being rendered via the index.php template, despite having a page.php as well as page-{$slug}.php templates in my theme. I disabled WordPress SEO and the issue disappeared, then I re-enabled again and all seems to be well.

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