diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/group.js b/packages/node_modules/@node-red/editor-client/src/js/ui/group.js
index 13056f09b..b29428754 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/group.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/group.js
@@ -606,7 +606,8 @@ RED.group = (function() {
         for (var i=0; i<nodes.length; i++) {
             n = nodes[i];
             n.dirty = true;
-            var index = group.nodes.indexOf(n);
+            // TODO: Why Proxy indexOf returns -1 ?
+            var index = group.nodes.findIndex(function (node) { return node.id === n.id; });
             group.nodes.splice(index,1);
             if (reparent && parentGroup) {
                 n.g = group.g