Unreal Engine Issues
Unreal Engine Issues
Project does not cook with actors containing ModularSynth component
UE - Audio - Sep 11, 2017A project does not cook with actors containing ModularSynth component. The error is a follows UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT UATHelper: Pack ...
CLONE - Project does not cook with actors containing ModularSynth component
UE - Audio - Sep 13, 2017A project does not cook with actors containing ModularSynth component. The error is a follows UATHelper: Packaging (Windows (64-bit)): Cook: LogWindows: Error: begin: stack for UAT UATHelper: Pack ...
MRQ render with a slow output format drives Niagara GPU tick flush into its dummy-view path, causing an access violation in SetShaderParameters
UE - Rendering - Architecture - Niagara - Aug 18, 2026Sorry for the AI ticket, but it did a better job than I could: Rendering a level sequence through Movie Render Queue crashes the editor with an EXCEPTION_ACCESS_VIOLATION when the scene contains a N ...
Deadlock in UPhysicalAnimationComponent::UpdatePhysicsEngineImp
UE - Runtime - Simulation - Sep 13, 2023Deadlock in Chaos during PIE; the main thread is in USkeletalMeshComponent::HandleExistingParallelEvaluationTask waiting for a task to complete, and a worker thread is running that task and is in US ...
tvOS/IOS: Fails to Build with dSYM Options Enabled Due to DsymExporter Erroring Out
UE - Platform - Mobile - Jan 22, 2019When attempting to package for tvOS or iOS with the generate dSYM options enabled, numerous instances of the following errors occur:[2019.01.21-20.53.35:739][138]UATHelper: Packaging (tvOS): [2019 ...
[CrashReport] FMacWindow::ApplySizeAndModeChanges | SWindow::ReshapeWindow()
UE - Platform - Apple - Dec 1, 2017This is an infrequent Mac crash in 4.18. Users have not provided any descriptions of their actions when the crash occurred. The callstack is similar to both [Link Removed] and [Link Removed] Call ...
Dynamic Materials created on level actors through binding actor to sequencer causes missing asset in multiuser and crash in editor
zComponent - Archive - Apr 1, 2024[2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: === Handled ensure: === [2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: [2024.02.24-00.44.16:412][ 0]LogOutputDevice: Error: Ensure condit ...
Anim Notify States are ended when CustomTimeDilation is set to zero
UE - Runtime - Animation - Oct 12, 2022UDN link: https://udn.unrealengine.com/s/question/0D54z00008BEDfJCAX/set-actor-time-dilation-to-0-during-a-animation-notify-state-cancel-it?fromCase=1 Notify gathering functions (e.g. UAnimSequence ...
Crash when adding a streaming level to the world through Python
UE - Engine Scaling - Streaming - World Composition - Aug 3, 2021When using the Python plugin to add an existing level as a streaming level, the editor crashes. It seems that this happens regardless of what level is added or what the contents of that level are. A ...
Editor crash when opening Project Settings on Linux
UE - Platform - Linux - Mar 29, 2017When the Project Settings is opened on Linux, a call is made to run an iOS-related C# program (execute iPhonePackager certificates). This call causes the editor to crash. Unable to find mention of ...