diff --git a/wp-content/themes/twentytwentyone/inc/template-functions.php b/wp-content/themes/twentytwentyone/inc/template-functions.php
index 2bee7d6f95..6498c7dfa9 100644
--- a/wp-content/themes/twentytwentyone/inc/template-functions.php
+++ b/wp-content/themes/twentytwentyone/inc/template-functions.php
@@ -457,7 +457,7 @@ function twenty_twenty_one_get_attachment_image_attributes( $attr, $attachment,
 		$height = (int) $size[1];
 	} elseif ( $attachment && is_object( $attachment ) && $attachment->ID ) {
 		$meta = wp_get_attachment_metadata( $attachment->ID );
-		if ( $meta['width'] && $meta['height'] ) {
+		if ( isset( $meta['width'] ) && isset( $meta['height'] ) ) {
 			$width  = (int) $meta['width'];
 			$height = (int) $meta['height'];
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 7948b0d819..688621658d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52216';
+$wp_version = '5.9-alpha-52217';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.