diff --git a/src/applications/project/controller/PhabricatorProjectController.php b/src/applications/project/controller/PhabricatorProjectController.php
--- a/src/applications/project/controller/PhabricatorProjectController.php
+++ b/src/applications/project/controller/PhabricatorProjectController.php
@@ -191,7 +191,13 @@
 
     $view_list = $engine->newProfileMenuItemViewList();
 
-    $view_list->setSelectedViewWithItemIdentifier($item_identifier);
+    // See PHI1247. If the "Workboard" item is removed from the menu, we will
+    // not be able to select it. This can happen if a user removes the item,
+    // then manually navigate to the workboard URI (or follows an older link).
+    // In this case, just render the menu with no selected item.
+    if ($view_list->getViewsWithItemIdentifier($item_identifier)) {
+      $view_list->setSelectedViewWithItemIdentifier($item_identifier);
+    }
 
     $navigation = $view_list->newNavigationView();