diff --git a/assets/css/src/components-form-editor/_block-editor.scss b/assets/css/src/components-form-editor/_block-editor.scss
index 693b7ce67c..60d8736a63 100644
--- a/assets/css/src/components-form-editor/_block-editor.scss
+++ b/assets/css/src/components-form-editor/_block-editor.scss
@@ -88,3 +88,8 @@ h2 {
     width: 300px;
   }
 }
+
+// Fix z-index for block inserter popup to display it over wpadmibar
+.block-editor-inserter__popover {
+  z-index: 100000 !important;
+}
diff --git a/assets/js/src/form_editor/components/editor.jsx b/assets/js/src/form_editor/components/editor.jsx
index c3aa66d3b6..b5e42d5aff 100644
--- a/assets/js/src/form_editor/components/editor.jsx
+++ b/assets/js/src/form_editor/components/editor.jsx
@@ -103,11 +103,11 @@ export default () => {
                 <div className="interface-interface-skeleton__sidebar">
                   { sidebarOpened ? <Sidebar /> : null }
                 </div>
-                <Popover.Slot />
               </BlockEditorProvider>
             </div>
             <FormStyles />
           </div>
+          <Popover.Slot />
         </SlotFillProvider>
       </DropZoneProvider>
       <Preview />