From 3cd3d86f4ee72197c99bd3b438c7fd636bc4395c Mon Sep 17 00:00:00 2001
From: Marvelco <helito941@gmail.com>
Date: Tue, 10 Mar 2026 23:43:17 +0200
Subject: [PATCH] fixed old saves have overlapping chunks with the new system

---
 Minecraft.World/RegionFileCache.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Minecraft.World/RegionFileCache.cpp b/Minecraft.World/RegionFileCache.cpp
index 491e91109..bd6405fa3 100644
--- a/Minecraft.World/RegionFileCache.cpp
+++ b/Minecraft.World/RegionFileCache.cpp
@@ -11,8 +11,12 @@ bool RegionFileCache::useSplitSaves(ESavePlatform platform)
 	{
 	case SAVE_FILE_PLATFORM_XBONE:
 	case SAVE_FILE_PLATFORM_PS4:
-	case SAVE_FILE_PLATFORM_WIN64:
 		return true;
+	case SAVE_FILE_PLATFORM_WIN64:
+	{
+		LevelGenerationOptions* lgo = app.getLevelGenerationOptions();
+		return (lgo != nullptr && lgo->isFromDLC());
+	}
 	default:
 		return false;
 	};