From 476fa73e43fc83354cb01cfecbbfee149eee79a3 Mon Sep 17 00:00:00 2001
From: Andrew <159703254+andrewsoonqn@users.noreply.github.com>
Date: Mon, 13 Jul 2026 19:20:23 +0800
Subject: [PATCH] Prevent script execution during shutdown

Skip script action calls when the application
is closing to avoid post-teardown issues.
---
 src/slic3r/GUI/SpeedDialDialog.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/SpeedDialDialog.cpp b/src/slic3r/GUI/SpeedDialDialog.cpp
index 447d6a8dca..be34c9fce1 100644
--- a/src/slic3r/GUI/SpeedDialDialog.cpp
+++ b/src/slic3r/GUI/SpeedDialDialog.cpp
@@ -270,10 +270,14 @@ private:
         }
         // why: value-capture only. Script execution may outlive this popup if the app is closing.
         wxGetApp().CallAfter([id] {
+            // why: the queue may drain during shutdown, after MainFrame/Plater teardown;
+            //      skip like the ScriptActionSource callbacks do instead of running into it.
+            if (wxGetApp().is_closing())
+                return;
             AppActionRunResult o = wxGetApp().action_registry().run(id);
             if (o.level == AppActionRunResult::Level::Busy)
                 return;
-            if (!o.message.IsEmpty())
+            if (!o.message.IsEmpty() && wxGetApp().plater())
                 wxGetApp().plater()->get_notification_manager()->push_notification(
                     NotificationType::CustomNotification,
                     o.level == AppActionRunResult::Level::Error ? NotificationManager::NotificationLevel::ErrorNotificationLevel :