Here’s a solution:
I experienced this issue when displaying multiple directory shortcodes on a page. The first should work correctly, but the rest will not.
Open the gravity-forms-addons.php file. On line 1410 you’ll see:
require_once(WP_PLUGIN_DIR . "/" . basename(dirname(__FILE__)) . "/template-row.php");
Changing this to the following resolved the issue for me:
require(WP_PLUGIN_DIR . "/" . basename(dirname(__FILE__)) . "/template-row.php");