From bb668d136afbbe9c1615961d394b54debbc3ce5e Mon Sep 17 00:00:00 2001
From: Sally Knight <ffqq@danwin1210.de>
Date: Fri, 13 Mar 2026 21:34:39 +0300
Subject: [PATCH] fix: add level null check to advanced opengl toggle

---
 Minecraft.Client/GameState/Options.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Minecraft.Client/GameState/Options.cpp b/Minecraft.Client/GameState/Options.cpp
index 06b08d5bd..47acf2f26 100644
--- a/Minecraft.Client/GameState/Options.cpp
+++ b/Minecraft.Client/GameState/Options.cpp
@@ -260,7 +260,8 @@ void Options::toggle(const Options::Option *option, int dir)
     if (option == Option::ADVANCED_OPENGL)
 	{
         advancedOpengl = !advancedOpengl;
-        minecraft->levelRenderer->allChanged();
+		// 4jcraft: ensure level exists before applying
+        if(minecraft->level) minecraft->levelRenderer->allChanged();
     }
     if (option ==  Option::ANAGLYPH)
 	{