When using nullrhi, the Texture->Resource variable in UAsyncTaskDownloadImage::HandleImageRequest is null and a crash occurs in WriteRawToTexture_RenderThread.
Result
The game crushes (see call stack)
UE4Game.exe!FTexture2DDynamicResource::GetTexture2DRHI() Line 81 C++ Symbols loaded. UE4Game.exe!WriteRawToTexture_RenderThread(FTexture2DDynamicResource * TextureResource, TArray<unsigned char,TSizedDefaultAllocator<64>> * RawData, bool bUseSRGB) Line 23 C++ Symbols loaded. UE4Game.exe!TGraphTask<TEnqueueUniqueRenderCommandType<`UAsyncTaskDownloadImage::HandleImageRequest'::`18'::FWriteRawDataToTextureName,<lambda_5b8d6e544bf2cdcf9314ad29dca60d99>>>::ExecuteTask(TArray<FBaseGraphTask *,TSizedDefaultAllocator<32>> & NewTasks, ENamedThreads::Type CurrentThread) Line 852 C++ Symbols loaded. [Inline Frame] UE4Game.exe!FBaseGraphTask::Execute(TArray<FBaseGraphTask *,TSizedDefaultAllocator<32>> & CurrentThread, ENamedThreads::Type) Line 516 C++ Symbols loaded. UE4Game.exe!FNamedTaskThread::ProcessTasksNamedThread(int QueueIndex, bool bAllowStall) Line 692 C++ Symbols loaded. UE4Game.exe!FNamedTaskThread::ProcessTasksUntilQuit(int QueueIndex) Line 587 C++ Symbols loaded. UE4Game.exe!RenderingThreadMain(FEvent * TaskGraphBoundSyncEvent) Line 341 C++ Symbols loaded. UE4Game.exe!FRenderingThread::Run() Line 492 C++ Symbols loaded.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-100741 in the post.
| 0 |
| Component | UE - Editor - UI Systems |
|---|---|
| Affects Versions | 4.25 |
| Target Fix | 4.26 |
| Created | Oct 8, 2020 |
|---|---|
| Resolved | Oct 26, 2020 |
| Updated | Apr 27, 2021 |