diff --git a/packages/node_modules/@node-red/editor-client/src/js/nodes.js b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
index 63027aed1..c14126a00 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/nodes.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/nodes.js
@@ -301,6 +301,17 @@ RED.nodes = (function() {
         return {links:removedLinks,nodes:removedNodes};
     }
 
+    function moveNodeToTab(node, z) {
+        if (nodeTabMap[node.z]) {
+            delete nodeTabMap[node.z][node.id];
+        }
+        if (!nodeTabMap[z]) {
+            nodeTabMap[z] = {};
+        }
+        nodeTabMap[z][node.iz] = node;
+        node.z = z;
+    }
+    
     function removeLink(l) {
         var index = links.indexOf(l);
         if (index != -1) {
@@ -1466,6 +1477,8 @@ RED.nodes = (function() {
         remove: removeNode,
         clear: clear,
 
+        moveNodeToTab: moveNodeToTab,
+        
         addLink: addLink,
         removeLink: removeLink,
 
diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/subflow.js b/packages/node_modules/@node-red/editor-client/src/js/ui/subflow.js
index e136f7df6..a8be067d6 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/subflow.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/subflow.js
@@ -723,7 +723,7 @@ RED.subflow = (function() {
             }
             n.x -= offsetX;
             n.y -= offsetY;
-            n.z = subflow.id;
+            RED.nodes.moveNodeToTab(n, subflow.id);
         }
 
         RED.history.push({