diff --git a/wp-includes/theme-compat/embed-content.php b/wp-includes/theme-compat/embed-content.php
index c77026bd67..11bef95df8 100644
--- a/wp-includes/theme-compat/embed-content.php
+++ b/wp-includes/theme-compat/embed-content.php
@@ -39,7 +39,7 @@
 			$meta = wp_get_attachment_metadata( $thumbnail_id );
 			if ( ! empty( $meta['sizes'] ) ) {
 				foreach ( $meta['sizes'] as $size => $data ) {
-					if ( $data['width'] / $data['height'] > $aspect_ratio ) {
+					if ( $data['height'] > 0 && $data['width'] / $data['height'] > $aspect_ratio ) {
 						$aspect_ratio = $data['width'] / $data['height'];
 						$measurements = array( $data['width'], $data['height'] );
 						$image_size   = $size;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c7af8e2993..1c8bcd6f91 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta2-41901';
+$wp_version = '4.9-beta2-41902';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.