diff --git a/MP-TAB/MP-TAB.Client/Pages/MachineDetail.razor b/MP-TAB/MP-TAB.Client/Pages/MachineDetail.razor
index 73b7de0c..c3f6779b 100644
--- a/MP-TAB/MP-TAB.Client/Pages/MachineDetail.razor
+++ b/MP-TAB/MP-TAB.Client/Pages/MachineDetail.razor
@@ -27,6 +27,7 @@ else
         {
             CurrMSE = await MsgServ.GetMachineMse(IdxMacc);
         }
+        //await InvokeAsync(StateHasChanged);
         // return base.OnAfterRenderAsync(firstRender);
     }
     protected MappaStatoExpl? CurrMSE { get; set; } = null;
diff --git a/MP-TAB/MP-TAB/Components/Pages/MachineDetail.razor b/MP-TAB/MP-TAB/Components/Pages/MachineDetail.razor
index e052b99a..7f6b4af3 100644
--- a/MP-TAB/MP-TAB/Components/Pages/MachineDetail.razor
+++ b/MP-TAB/MP-TAB/Components/Pages/MachineDetail.razor
@@ -3,12 +3,12 @@
 
 <!-- Temporary workaround until MapRazorComponents supports AddAdditionalAssemblies -->
 <!-- Once that is implemented, the main project won't need to include this file -->
-<MP_TAB.Client.Pages.MachineDetail ></MP_TAB.Client.Pages.MachineDetail>
+<MP_TAB.Client.Pages.MachineDetail IdxMacc="@IdxMacc"></MP_TAB.Client.Pages.MachineDetail>
 
 @code {
 
     [Parameter]
-    [SupplyParameterFromQuery]
+    [SupplyParameterFromQuery(Name = "IdxMacc")]
     public string? IdxMacc { get; set; }
 
    
diff --git a/MP.Data/Services/MessageService.cs b/MP.Data/Services/MessageService.cs
index 3a20eac8..3cb4749b 100644
--- a/MP.Data/Services/MessageService.cs
+++ b/MP.Data/Services/MessageService.cs
@@ -8,6 +8,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Text.Json;
 using System.Threading.Tasks;
 
 namespace MP.Data.Services
@@ -396,7 +397,7 @@ namespace MP.Data.Services
         {
             foreach (var item in currListMSE)
             {
-                string serVal = Newtonsoft.Json.JsonConvert.SerializeObject(item);
+                string serVal = JsonSerializer.Serialize(item);
                 await localStorage.SetItemAsync(machineMse(item.IdxMacchina), serVal);
             }
         }
@@ -408,7 +409,13 @@ namespace MP.Data.Services
         /// <returns></returns>
         public async Task<MappaStatoExpl> GetMachineMse(string idxMacchina)
         {
-            MappaStatoExpl answ = await localStorage.GetItemAsync<MappaStatoExpl>(machineMse(idxMacchina));
+            MappaStatoExpl answ = new MappaStatoExpl();
+            //answ = await localStorage.GetItemAsync<MappaStatoExpl>(machineMse(idxMacchina));
+            string tryString = await localStorage.GetItemAsync<string>(machineMse(idxMacchina));
+            if(tryString != "")
+            {
+                answ = JsonSerializer.Deserialize<MappaStatoExpl>(tryString);
+            }
             return answ;
         }