diff --git a/src/backend/controllers/pagesOrder.ts b/src/backend/controllers/pagesOrder.ts
index b8090dc..ad618ec 100644
--- a/src/backend/controllers/pagesOrder.ts
+++ b/src/backend/controllers/pagesOrder.ts
@@ -130,7 +130,9 @@ class PagesOrder {
     const pageOrder = await PageOrder.get(parentPageId);
 
     // Create unique array with ordered and unordered pages id
-    pageOrder.order = Array.from(new Set([...pageOrder.order, ...unordered]));
+    pageOrder.order = Array
+      .from(new Set([...pageOrder.order, ...unordered].map(id => id?.toString())))
+      .map(toEntityId);
     pageOrder.putAbove(currentPageId, putAbovePageId);
     await pageOrder.save();
     await PagesFlatArray.regenerate();
diff --git a/src/backend/models/page.ts b/src/backend/models/page.ts
index bff107c..ee76735 100644
--- a/src/backend/models/page.ts
+++ b/src/backend/models/page.ts
@@ -1,5 +1,5 @@
 import urlify from '../utils/urlify.js';
-import database from '../database/index.js';
+import database, {isEqualIds} from '../database/index.js';
 import { EntityId } from '../database/types.js';
 
 const pagesDb = database['pages'];
@@ -208,7 +208,7 @@ class Page {
     if (uri) {
       let pageWithSameUri = await Page.getByUri(uri);
 
-      while (pageWithSameUri._id && pageWithSameUri._id !== this._id) {
+      while (pageWithSameUri._id && !isEqualIds(pageWithSameUri._id, this._id)) {
         pageWithSameUriCount++;
         pageWithSameUri = await Page.getByUri(uri + `-${pageWithSameUriCount}`);
       }
diff --git a/src/backend/routes/api/pages.ts b/src/backend/routes/api/pages.ts
index 0925667..a64596b 100644
--- a/src/backend/routes/api/pages.ts
+++ b/src/backend/routes/api/pages.ts
@@ -93,7 +93,8 @@ router.post('/page/:id', multer.none(), async (req: Request, res: Response) => {
   const id = toEntityId(req.params.id);
 
   try {
-    const { title, body, parent, putAbovePageId, uri } = req.body;
+    const { title, body, putAbovePageId, uri } = req.body;
+    const parent = toEntityId(req.body.parent);
     const pages = await Pages.getAllPages();
     let page = await Pages.get(id);