diff --git a/package-lock.json b/package-lock.json
index 302bc5192..3fd371fc6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "trilium",
-  "version": "0.33.3",
+  "version": "0.33.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index f99367714..2746973cc 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "trilium",
   "productName": "Trilium Notes",
   "description": "Trilium Notes",
-  "version": "0.33.3",
+  "version": "0.33.4",
   "license": "AGPL-3.0-only",
   "main": "electron.js",
   "bin": {
diff --git a/src/public/javascripts/services/branches.js b/src/public/javascripts/services/branches.js
index aa4fdffa0..fc2983f9d 100644
--- a/src/public/javascripts/services/branches.js
+++ b/src/public/javascripts/services/branches.js
@@ -102,7 +102,7 @@ async function deleteNodes(nodes) {
         next = nodes[0].getPrevSibling();
     }
 
-    if (!next && !hoistedNoteService.isTopLevelNode(nodes[0])) {
+    if (!next && !await hoistedNoteService.isTopLevelNode(nodes[0])) {
         next = nodes[0].getParent();
     }
 
diff --git a/src/public/javascripts/services/tree.js b/src/public/javascripts/services/tree.js
index 39c709023..36c8d9bb5 100644
--- a/src/public/javascripts/services/tree.js
+++ b/src/public/javascripts/services/tree.js
@@ -630,7 +630,8 @@ async function createNote(node, parentNoteId, target, extraOptions = {}) {
         extraClasses: await treeBuilder.getExtraClasses(noteEntity),
         icon: await treeBuilder.getIcon(noteEntity),
         folder: extraOptions.type === 'search',
-        lazy: true
+        lazy: true,
+        key: utils.randomString(12) // this should prevent some "duplicate key" errors
     };
 
     if (target === 'after') {
diff --git a/src/public/javascripts/services/tree_builder.js b/src/public/javascripts/services/tree_builder.js
index 77f094da7..16a1c4708 100644
--- a/src/public/javascripts/services/tree_builder.js
+++ b/src/public/javascripts/services/tree_builder.js
@@ -83,7 +83,8 @@ async function prepareNode(branch) {
         icon: await getIcon(note),
         refKey: note.noteId,
         expanded: branch.isExpanded || hoistedNoteId === note.noteId,
-        lazy: true
+        lazy: true,
+        key: utils.randomString(12) // this should prevent some "duplicate key" errors
     };
 
     if (note.hasChildren() || note.type === 'search') {
diff --git a/src/services/build.js b/src/services/build.js
index ff56c6a5d..c75bfc186 100644
--- a/src/services/build.js
+++ b/src/services/build.js
@@ -1 +1 @@
-module.exports = { buildDate:"2019-06-24T20:47:50+02:00", buildRevision: "1b831f94a98dbbb7184048f329ea89175841dec2" };
+module.exports = { buildDate:"2019-06-26T21:20:30+02:00", buildRevision: "a3951f1cce978699d81f312c590d71f6ca4c6771" };