From ab3a6fcd44df16b511070ad297e4b26838f520df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Paul=20Wei=C3=9F?= <paul.weiss@malighting.de>
Date: Tue, 21 Jul 2026 10:49:59 +0200
Subject: [PATCH] Fix segfault caused by calling nullptr->Write when the file
 could not be opened.

---
 Graphics/GraphicsTools/interface/RenderStateCache.hpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Graphics/GraphicsTools/interface/RenderStateCache.hpp b/Graphics/GraphicsTools/interface/RenderStateCache.hpp
index 942715699b..403263d4f7 100644
--- a/Graphics/GraphicsTools/interface/RenderStateCache.hpp
+++ b/Graphics/GraphicsTools/interface/RenderStateCache.hpp
@@ -210,8 +210,10 @@ class RenderDeviceWithCache : public RenderDeviceX<ThrowOnError>
             if (pCacheData)
             {
                 FileWrapper CacheDataFile{FilePath, EFileAccessMode::Overwrite};
-                if (CacheDataFile->Write(pCacheData->GetConstDataPtr(), pCacheData->GetSize()))
+                if (CacheDataFile && CacheDataFile->Write(pCacheData->GetConstDataPtr(), pCacheData->GetSize()))
                     LOG_INFO_MESSAGE("Successfully saved state cache file ", FilePath, " (", FormatMemorySize(pCacheData->GetSize()), ").");
+                else
+                    LOG_ERROR_MESSAGE("Failed to save state cache file ", FilePath, " (", FormatMemorySize(pCacheData->GetSize()), ").");
             }
         }
         else