diff --git a/DeepDrftManager/Components/Pages/Tracks/BatchUpload.razor b/DeepDrftManager/Components/Pages/Tracks/BatchUpload.razor
index da9bb92..21421be 100644
--- a/DeepDrftManager/Components/Pages/Tracks/BatchUpload.razor
+++ b/DeepDrftManager/Components/Pages/Tracks/BatchUpload.razor
@@ -129,10 +129,9 @@
     // Set true once the admin has acknowledged the missing-hero warning, so a second submit proceeds.
     private bool _heroWarningAcknowledged;
 
-    // Captured at component initialization (when the token is known-good) so a mid-session
-    // token expiry at submit time cannot discard a long-composed release. Only assigned when
-    // the id parses successfully — a prerender pass returns an anonymous principal (no JS
-    // interop available), so the field stays null until the live interactive circuit populates it.
+    // Captured once at component initialization on the live interactive circuit, while the token
+    // is known-good, so a mid-session token expiry at submit time cannot discard a long-composed
+    // release. Only assigned when the id parses successfully.
     private long? _createdByUserId;
 
     private string _albumName = string.Empty;
@@ -164,10 +163,9 @@
 
     protected override async Task OnInitializedAsync()
     {
-        // Capture the user id once at load, while the token is known-good. The page is [Authorize]-gated
-        // so this should always succeed on the live interactive circuit. During static prerender, auth
-        // state is anonymous (no JS interop → no localStorage JWT read), so the parse fails and the
-        // field stays null; the interactive circuit then runs this again and sets the real value.
+        // Capture the user id once at load, while the token is known-good. The CMS host runs with
+        // prerender: false (InteractiveServer), so this is the single init pass — auth state is
+        // fully available. The page is [Authorize]-gated, so the parse should always succeed.
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
         var userIdValue = authState.User.FindFirstValue(ClaimTypes.NameIdentifier);
         if (long.TryParse(userIdValue, out var userId))