From 2aa6aabe1d221cd0d12852b8296a93c4326e3dba Mon Sep 17 00:00:00 2001
From: "seer-by-sentry[bot]"
 <157164994+seer-by-sentry[bot]@users.noreply.github.com>
Date: Fri, 25 Jul 2025 02:13:11 +0000
Subject: [PATCH] Fix: Prevent exception when AppModel.LastSelectedTabIndex is
 set before MainPage is loaded

---
 src/Files.App/Data/Models/AppModel.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/Files.App/Data/Models/AppModel.cs b/src/Files.App/Data/Models/AppModel.cs
index 8b7e213ab34a..96a537e463e5 100644
--- a/src/Files.App/Data/Models/AppModel.cs
+++ b/src/Files.App/Data/Models/AppModel.cs
@@ -43,8 +43,10 @@ public int TabStripSelectedIndex
 					if (value >= 0 && value < MainPageViewModel.AppInstances.Count)
 					{
 						var rootFrame = (Frame)MainWindow.Instance.Content;
-						var mainView = (MainPage)rootFrame.Content;
-						mainView.ViewModel.SelectedTabItem = MainPageViewModel.AppInstances[value];
+						if (rootFrame.Content is MainPage mainView)
+						{
+							mainView.ViewModel.SelectedTabItem = MainPageViewModel.AppInstances[value];
+						}
 					}
 				}
 				catch (COMException)