diff --git a/MP.SPEC/Components/ParamsFilter.razor b/MP.SPEC/Components/ParamsFilter.razor
index d924994c..7642a4c3 100644
--- a/MP.SPEC/Components/ParamsFilter.razor
+++ b/MP.SPEC/Components/ParamsFilter.razor
@@ -31,6 +31,9 @@
                 @if (snapshotDone)
                 {
                     <button class="btn btn-success" type="button" @onclick="() => navDossier()">
+                        <div class="spinner-border spinner-border-sm" role="status">
+                            <span class="visually-hidden">Loading...</span>
+                        </div>
                         <i class="fa-solid fa-camera"></i>
                         Fatto! Mostra Dossier
                     </button>
diff --git a/MP.SPEC/Components/ParamsFilter.razor.cs b/MP.SPEC/Components/ParamsFilter.razor.cs
index 8cc266de..454b7827 100644
--- a/MP.SPEC/Components/ParamsFilter.razor.cs
+++ b/MP.SPEC/Components/ParamsFilter.razor.cs
@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Components;
 using MP.SPEC.Data;
+using System.Runtime.CompilerServices;
 
 namespace MP.SPEC.Components
 {
@@ -43,6 +44,12 @@ namespace MP.SPEC.Components
             aTimer.Stop();
             aTimer.Enabled = false;
             //reportChange();
+            var pUpd = Task.Run(async () =>
+            {
+                await Task.Delay(1);
+                await InvokeAsync(() => StateHasChanged());
+            });
+            pUpd.Wait();
         }
 
         #endregion Public Methods