ensure Pages collection is always returned in the same order by moving GetPagesHierarchy method to the repository.

Oqtane.Client/UI/ThemeBuilder.razor

@@ -11,6 +11,8 @@
 
     RenderFragment DynamicComponent { get; set; }
 
+    private string lastPagePath = "";
+
     protected override void OnParametersSet()
     {
         // handle page redirection
@@ -90,7 +92,7 @@
 
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
-        if (!firstRender)
+        if (!firstRender && PageState.Page.Path != lastPagePath)
         {
             if (!string.IsNullOrEmpty(PageState.Site.HeadContent) && PageState.Site.HeadContent.Contains("<script"))
             {
@@ -108,6 +110,7 @@
             {
                 await InjectScripts(PageState.Page.BodyContent, ResourceLocation.Body);
             }
+            lastPagePath = PageState.Page.Path;
         }
 
         // style sheets

Oqtane.Server/Controllers/PageController.cs

@@ -9,7 +9,7 @@ using System.Net;
 using Oqtane.Enums;
 using Oqtane.Infrastructure;
 using Oqtane.Repository;
-using System.IO;
+using System;
 
 namespace Oqtane.Controllers
 {

Oqtane.Server/Repository/PageRepository.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.EntityFrameworkCore;
@@ -31,7 +32,47 @@ namespace Oqtane.Repository
             {
                 page.PermissionList = permissions.Where(item => item.EntityId == page.PageId).ToList();
             }
-            return pages;
+            return GetPagesHierarchy(pages);
+        }
+
+        private static List<Page> GetPagesHierarchy(List<Page> pages)
+        {
+            List<Page> hierarchy = new List<Page>();
+            Action<List<Page>, Page> getPath = null;
+            getPath = (pageList, page) =>
+            {
+                IEnumerable<Page> children;
+                int level;
+                if (page == null)
+                {
+                    level = -1;
+                    children = pages.Where(item => item.ParentId == null);
+                }
+                else
+                {
+                    level = page.Level;
+                    children = pages.Where(item => item.ParentId == page.PageId);
+                }
+                foreach (Page child in children)
+                {
+                    child.Level = level + 1;
+                    child.HasChildren = pages.Any(item => item.ParentId == child.PageId && !item.IsDeleted && item.IsNavigation);
+                    hierarchy.Add(child);
+                    getPath(pageList, child);
+                }
+            };
+            pages = pages.OrderBy(item => item.Order).ToList();
+            getPath(pages, null);
+
+            // add any non-hierarchical items to the end of the list
+            foreach (Page page in pages)
+            {
+                if (hierarchy.Find(item => item.PageId == page.PageId) == null)
+                {
+                    hierarchy.Add(page);
+                }
+            }
+            return hierarchy;
         }
 
         public Page AddPage(Page page)

Oqtane.Server/Services/SiteService.cs

@@ -127,7 +127,6 @@ namespace Oqtane.Services
                         .ToDictionary(setting => setting.SettingName, setting => (setting.IsPrivate ? _private : "") + setting.SettingValue);
                     site.Pages.Add(page);
                 }
-                site.Pages = GetPagesHierarchy(site.Pages);
 
                 // framework modules
                 var modules = GetPageModules(site.SiteId);