diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/tab-config.js b/packages/node_modules/@node-red/editor-client/src/js/ui/tab-config.js
index 90ecf6093..e2c8185cb 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/tab-config.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/tab-config.js
@@ -158,6 +158,7 @@ RED.sidebar.config = (function() {
                 entry.data('node',node.id);
                 nodeDiv.data('node',node.id);
                 var label = $('<div class="red-ui-palette-label"></div>').text(labelText).appendTo(nodeDiv);
+
                 if (node.d) {
                     nodeDiv.addClass("red-ui-palette-node-config-disabled");
                     $('<i class="fa fa-ban"></i>').prependTo(label);
@@ -179,6 +180,20 @@ RED.sidebar.config = (function() {
                         nodeDiv.addClass("red-ui-palette-node-config-unused");
                     }
                 }
+
+                if (!node.valid) {
+                    nodeDiv.addClass("red-ui-palette-node-config-invalid")
+                    const nodeDivAnnotations = $('<svg class="red-ui-palette-node-annotations red-ui-flow-node-error" width="10" height="10"></svg>').appendTo(nodeDiv)
+                    const errorBadge = document.createElementNS("http://www.w3.org/2000/svg","path");
+                    errorBadge.setAttribute("d","M 0,9 l 10,0 -5,-8 z");
+                    nodeDivAnnotations.append($(errorBadge))
+                    RED.popover.tooltip(nodeDivAnnotations, function () {
+                        if (node.validationErrors && node.validationErrors.length > 0) {
+                            return RED._("editor.errors.invalidProperties")+"<br>  - "+node.validationErrors.join("<br>  - ")
+                        }
+                    })
+                }
+
                 nodeDiv.on('click',function(e) {
                     e.stopPropagation();
                     RED.view.select(false);
diff --git a/packages/node_modules/@node-red/editor-client/src/sass/tab-config.scss b/packages/node_modules/@node-red/editor-client/src/sass/tab-config.scss
index c1f151ca6..9d678daa1 100644
--- a/packages/node_modules/@node-red/editor-client/src/sass/tab-config.scss
+++ b/packages/node_modules/@node-red/editor-client/src/sass/tab-config.scss
@@ -36,7 +36,7 @@ ul.red-ui-sidebar-node-config-list {
         text-align: center;
     }
     .red-ui-palette-node {
-        overflow: hidden;
+        // overflow: hidden;
         cursor: default;
         &.selected {
             border-color: transparent;
@@ -113,6 +113,15 @@ ul.red-ui-sidebar-node-config-list li.red-ui-palette-node-config-type {
         margin-right: 5px;
     }
 }
+.red-ui-palette-node-config-invalid {
+    border-color: var(--red-ui-form-input-border-error-color)
+}
+.red-ui-palette-node-annotations {
+    position: absolute;
+    left: calc(100% - 15px);
+    top: -8px;
+    display: block;
+}
 .red-ui-sidebar-node-config-filter-info {
     position: absolute;
     top: 0;