Through process of elimination, I discovered that WordPress SEO breaks post pagination on my WordPress installation.
I.e. Post pagination using the
<!--nextpage--> shortcode inside posts.
This is my permalink structure:
I thought the problem could be my permalink structure but I've discovered that post pagination is still broken if the default "ugly" permalink structure is used.
Disabling WordPress SEO restores post pagination functionality.
I turned off the "Enforce trailing slash" option under the WordPress SEO Permalinks configuration section but still no luck getting it to work.
I really do like WordPress SEO and would hate to be forced to uninstall it. If anyone could shed any light on how I might be able to fix this, it would be greatly appreciated.