Hi Elliot,
i got this message into the supposed locations list when changed “Show this field group if” select list:
“Fatal error: Call to undefined function get_page_templates() in ../wp-content/plugins/advanced-custom-fields/core/controllers/field_group.php on line 633”
On the Firebug console i don’t get any error or alert message, into the Firefox console i get this one:
“[11:31:16.050] An empty string was sent to getElementById(). @ /wp-admin/post-new.php?post_type=acf”
I’ve also tried the Chrome console, but over there no messages were displayed.