see readme.txt

acf-medium-editor.php

@@ -4,7 +4,7 @@
 		Plugin Name: ACF Medium Editor Field
 		Plugin URI: https://wordpress.org/plugins/acf-medium-editor-field/
 		Description: Medium Editor Field for ACF 5
-		Version: 2.5.0
+		Version: 2.5.1
 		Author: John A. Huebner II
 		Text Domain: acf-medium-editor
 		Author URI: https://github.com/Hube2
@@ -39,7 +39,7 @@ function __construct() {
 
 				// vars
 				$this->settings = array(
-					'version'	=> '2.5.0',
+					'version'	=> '2.5.1',
 					'url'		=> plugin_dir_url(__FILE__),
 					'path'		=> plugin_dir_path(__FILE__)
 				);

assets/css/input.css

@@ -37,7 +37,7 @@
 
 	.medium-editor-toolbar {
 		/* above WP admin menu */
-		z-index: 9999 !important;
+		z-index: 99999 !important;
 	}
 
 	/* Medium Editor field normalizing bugfix */

readme.txt

@@ -3,7 +3,7 @@ Contributors: Hube2
 Tags: acf, add on, inline wysywig, medium editor, configurable
 Requires at least: 4.0.0
 Tested up to: 5.1
-Stable tag: 2.5.0
+Stable tag: 2.5.1
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -211,6 +211,9 @@ add_filter('acf/medium-editor-field/buttons', 'my_buttons', 10, 2);
 
 == Changelog ==
 
+= 2.5.1 =
+* increased z-index of toolbar so it won't be hidden by other modals
+
 = 2.5.0 =
 * removed donation nag
 * added enqueing of medium-editor-style.css if it exists in theme