diff --git a/wp-content/themes/twentytwenty/classes/class-twentytwenty-non-latin-languages.php b/wp-content/themes/twentytwenty/classes/class-twentytwenty-non-latin-languages.php
index e5a7f0dc74..9be7acafe6 100644
--- a/wp-content/themes/twentytwenty/classes/class-twentytwenty-non-latin-languages.php
+++ b/wp-content/themes/twentytwenty/classes/class-twentytwenty-non-latin-languages.php
@@ -25,7 +25,7 @@ if ( ! class_exists( 'TwentyTwenty_Non_Latin_Languages' ) ) {
 		 * @since Twenty Twenty 1.0
 		 *
 		 * @param string $type Whether to return CSS for the "front-end", "block-editor", or "classic-editor".
-		 * @return void
+		 * @return string|null Custom CSS, or null if not applicable.
 		 */
 		public static function get_non_latin_css( $type = 'front-end' ) {
 
@@ -105,7 +105,7 @@ if ( ! class_exists( 'TwentyTwenty_Non_Latin_Languages' ) ) {
 
 			// Return if the selected language has no fallback fonts.
 			if ( empty( $font_family[ $locale ] ) ) {
-				return;
+				return null;
 			}
 
 			/**
@@ -126,7 +126,7 @@ if ( ! class_exists( 'TwentyTwenty_Non_Latin_Languages' ) ) {
 
 			// Return if the specified type doesn't exist.
 			if ( empty( $elements[ $type ] ) ) {
-				return;
+				return null;
 			}
 
 			// Return the specified styles.
diff --git a/wp-content/themes/twentytwenty/functions.php b/wp-content/themes/twentytwenty/functions.php
index 95a8123935..38fc4d8a48 100644
--- a/wp-content/themes/twentytwenty/functions.php
+++ b/wp-content/themes/twentytwenty/functions.php
@@ -196,7 +196,10 @@ function twentytwenty_register_styles() {
 	wp_style_add_data( 'twentytwenty-style', 'rtl', 'replace' );
 
 	// Add output of Customizer settings as inline style.
-	wp_add_inline_style( 'twentytwenty-style', twentytwenty_get_customizer_css( 'front-end' ) );
+	$customizer_css = twentytwenty_get_customizer_css( 'front-end' );
+	if ( $customizer_css ) {
+		wp_add_inline_style( 'twentytwenty-style', $customizer_css );
+	}
 
 	// Add print CSS.
 	wp_enqueue_style( 'twentytwenty-print-style', get_template_directory_uri() . '/print.css', null, $theme_version, 'print' );
@@ -424,10 +427,16 @@ function twentytwenty_block_editor_styles() {
 	wp_style_add_data( 'twentytwenty-block-editor-styles', 'rtl', 'replace' );
 
 	// Add inline style from the Customizer.
-	wp_add_inline_style( 'twentytwenty-block-editor-styles', twentytwenty_get_customizer_css( 'block-editor' ) );
+	$customizer_css = twentytwenty_get_customizer_css( 'block-editor' );
+	if ( $customizer_css ) {
+		wp_add_inline_style( 'twentytwenty-block-editor-styles', $customizer_css );
+	}
 
 	// Add inline style for non-latin fonts.
-	wp_add_inline_style( 'twentytwenty-block-editor-styles', TwentyTwenty_Non_Latin_Languages::get_non_latin_css( 'block-editor' ) );
+	$custom_css = TwentyTwenty_Non_Latin_Languages::get_non_latin_css( 'block-editor' );
+	if ( $custom_css ) {
+		wp_add_inline_style( 'twentytwenty-block-editor-styles', $custom_css );
+	}
 
 	// Enqueue the editor script.
 	wp_enqueue_script( 'twentytwenty-block-editor-script', get_theme_file_uri( '/assets/js/editor-script-block.js' ), array( 'wp-blocks', 'wp-dom' ), wp_get_theme()->get( 'Version' ), true );
@@ -465,6 +474,10 @@ function twentytwenty_add_classic_editor_customizer_styles( $mce_init ) {
 
 	$styles = twentytwenty_get_customizer_css( 'classic-editor' );
 
+	if ( ! $styles ) {
+		return $mce_init;
+	}
+
 	if ( ! isset( $mce_init['content_style'] ) ) {
 		$mce_init['content_style'] = $styles . ' ';
 	} else {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 8adcbf1ab3..0f8006aba3 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.2-beta3-55426';
+$wp_version = '6.2-beta3-55427';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.