From 590605b8d4fbfdf89c2cf086e37c3aae7204a69f Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Sat, 23 May 2026 22:06:17 +1000
Subject: [PATCH] FullscreenUI: Don't override existing window in
 PauseAndOpenMenuFromCoreThread()

---
 src/core/fullscreenui.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/fullscreenui.cpp b/src/core/fullscreenui.cpp
index 69af236fe..f680033a5 100644
--- a/src/core/fullscreenui.cpp
+++ b/src/core/fullscreenui.cpp
@@ -310,6 +310,9 @@ void FullscreenUI::PauseAndOpenMenuFromCoreThread(void (*callback)())
   const bool was_paused = System::IsPaused();
 
   VideoThread::RunOnThread([callback, was_paused]() {
+    if (s_locals.current_main_window != MainWindowType::None)
+      return;
+
     Initialize();
     if (!CanCurrentMainWindowStack() || !SetPendingMainWindowSwitch())
       return;