diff --git a/CHANGELOG.md b/CHANGELOG.md
index be1ee710e..2c3f534f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file, per [the Keep a Changelog standard](http://keepachangelog.com/).
 
+## [ 1.4.1 ] - 2019-03-15
+### Fixed
+* Improve block editor detection, correcting an issue with post saving.
+
 ## [ 1.4.0 ] - 2019-03-07
 ### Added
 * Clearer instructions and help text when adding an external connection.
diff --git a/distributor.php b/distributor.php
index 72af073dc..77dc18194 100644
--- a/distributor.php
+++ b/distributor.php
@@ -2,7 +2,7 @@
 /**
  * Plugin Name:       Distributor
  * Description:       Makes it easy to syndicate and reuse content across your websites, whether inside of a multisite or across the web.
- * Version:           1.4.0
+ * Version:           1.4.1
  * Author:            10up Inc.
  * Author URI:        https://distributorplugin.com
  * License:           GPLv2 or later
@@ -17,7 +17,7 @@
 	exit; // Exit if accessed directly.
 }
 
-define( 'DT_VERSION', '1.4.0-dev' );
+define( 'DT_VERSION', '1.4.1-dev' );
 define( 'DT_PLUGIN_FILE', preg_replace( '#^.*plugins/(.*)$#i', '$1', __FILE__ ) );
 
 // Define a constant if we're network activated to allow plugin to respond accordingly.
diff --git a/includes/utils.php b/includes/utils.php
index 24b3631b2..e656617a4 100644
--- a/includes/utils.php
+++ b/includes/utils.php
@@ -55,7 +55,28 @@ function is_using_gutenberg( $post ) {
 		return false;
 	}
 
-	return use_block_editor_for_post( $post );
+	/**
+	 * WordPress 5.0 will do a check_admin_referrer() inside the use_block_editor_for_posts(),
+	 * and this call would fail, returns a 404 if there's custom meta box, and kills the request.
+	 *
+	 * Unsetting the 'meta-box-loader' in the global request would bypass that check.
+	 */
+	if ( isset( $_GET['meta-box-loader'] ) ) {
+		$meta_box_loader = $_GET['meta-box-loader'];
+		unset( $_GET['meta-box-loader'] );
+	}
+
+	$use_block_editor = use_block_editor_for_post( $post );
+
+	/**
+	 * Set the $meta_box_loader back to the request, if it exists
+	 * so other areas that rely on it would still work.
+	 */
+	if ( isset( $meta_box_loader ) ) {
+		$_GET['meta-box-loader'] = $meta_box_loader;
+	}
+
+	return $use_block_editor;
 }