Encountered while going through some debug commands.
Repro 3/3.
Crash Reporter Link: [Link Removed]
Assertion failed: ChunkIndex != 0 [File:E:\User\Engine\Source\Runtime\Engine\Private\AudioStreamingCache.cpp] [Line: 515] Decoder tried to access the zeroth chunk through the streaming manager. Use USoundWave::GetZerothChunk() instead.
1) Launch AudioQA
2) Add the Sound Wave FemaleVoice_looping to the default level
3) PIE
4) Open the console and enter au.editor.ForceAudioNonStreaming 1
5) Stop PIE
6) PIE again
Expected Result:
Audio plays without issue
Actual Result:
Editor crashes
UnrealEditor_Engine!FCachedAudioStreamingManager::GetLoadedChunk() [AudioStreamingCache.cpp:515] UnrealEditor_Engine!FSoundWaveProxy::GetZerothChunk() [SoundWave.cpp:3963] UnrealEditor_Engine!IStreamedCompressedInfo::StreamCompressedInfoInternal() [AudioDecompress.cpp:156] UnrealEditor_Engine!ICompressedAudioInfo::StreamCompressedInfo() [AudioDecompress.cpp:835] UnrealEditor_AudioMixer!Audio::FMixerBuffer::CreateStreamingBuffer() [AudioMixerBuffer.cpp:342] UnrealEditor_AudioMixer!Audio::FMixerBuffer::Init() [AudioMixerBuffer.cpp:296] UnrealEditor_AudioMixer!Audio::FMixerSource::PrepareForInitialization() [AudioMixerSource.cpp:815] UnrealEditor_Engine!FAudioDevice::StartSources() [AudioDevice.cpp:4227] UnrealEditor_Engine!FAudioDevice::Update() [AudioDevice.cpp:4537] UnrealEditor_Engine!FAudioDeviceManager::IterateOverAllDevices() [AudioDeviceManager.cpp:963] UnrealEditor_Engine!FAudioDeviceManager::UpdateActiveAudioDevices() [AudioDeviceManager.cpp:944] UnrealEditor_UnrealEd!UEditorEngine::Tick() [EditorEngine.cpp:2052] UnrealEditor_UnrealEd!UUnrealEdEngine::Tick() [UnrealEdEngine.cpp:474] UnrealEditor!FEngineLoop::Tick() [LaunchEngineLoop.cpp:5215] UnrealEditor!GuardedMain() [Launch.cpp:183] UnrealEditor!GuardedMainWrapper() [LaunchWindows.cpp:147] UnrealEditor!LaunchWindowsStartup() [LaunchWindows.cpp:283] UnrealEditor!WinMain() [LaunchWindows.cpp:330] UnrealEditor!__scrt_common_main_seh() [exe_common.inl:288]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-155282 in the post.
| 0 |
| Component | UE - Audio - Stream Caching |
|---|---|
| Affects Versions | 5.0 |
| Created | May 31, 2022 |
|---|---|
| Updated | Jan 16, 2024 |