From e10ff16fa1f04ce7d11a389b0ff28e54ac7deb53 Mon Sep 17 00:00:00 2001
From: Lennard Fonteijn <lennard@lennardf1989.com>
Date: Tue, 14 Mar 2023 12:23:44 +0100
Subject: [PATCH] Fixed issue where filtering allowed element types with a
 NotificationHandler causes issues with Block Grid areas

---
 .../blockgrid/umbBlockGridPropertyEditor.component.js           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blockgrid/umbBlockGridPropertyEditor.component.js b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blockgrid/umbBlockGridPropertyEditor.component.js
index 4ebac72928..9717e5537a 100644
--- a/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blockgrid/umbBlockGridPropertyEditor.component.js
+++ b/src/Umbraco.Web.UI.Client/src/views/propertyeditors/blockgrid/umbBlockGridPropertyEditor.component.js
@@ -708,7 +708,7 @@
                         } else 
                         if(allowance.elementTypeKey) {
                             const blockType = vm.availableBlockTypes.find(x => x.blockConfigModel.contentElementTypeKey === allowance.elementTypeKey);
-                            if(allowedElementTypes.indexOf(blockType) === -1) {
+                            if(blockType && allowedElementTypes.indexOf(blockType) === -1) {
                                 allowedElementTypes.push(blockType);
                             }
                         }