Unreal Engine Issues
Unreal Engine Issues
IOS GPU Hang Error (IOAF code 3) and Crash when rotating to Landscape
UE - Platform - Mobile - Oct 11, 2018When users rotate to landscape in QAARApp the apple device will encounter a GPU Hang error and crash.Execution of the command buffer was aborted due to an error during execution. Caused GPU Hang Err ...
Certain UPROPERTY values are not updated during auto-recompile
UE - Gameplay - Blueprint - Aug 4, 2016Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...
[CrashReport] Linux crash - TOpenGLBuffer<FOpenGLBaseVertexBuffer, 34962u, &()
UE - Platform - Linux - Sep 14, 2017This is an infrequent Linux crash that has affected a few users in 4.17.1 Callstack from Log[2017.09.12-17.23.41:651][ 0]LogRHI: OpenGL MajorVersion = 4, MinorVersion = 5, ShaderPlatform = GLSL_43 ...
[CrashReport] Crash occurring in Phonon::FPhononReverb::ProcessMixedAudio
UE - Audio - Apr 27, 2017This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information. From Log:/Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap.StartupMap (0.006787s) ...
[CrashReport] UE4Editor-TargetDeviceServices.dylib!TRawMessageHandler<FTargetDeviceServicePong, FTargetDeviceProxyManager>::HandleMessage(TSharedRef<IMessageContext,()
UE - Platform - Apple - Oct 5, 2017This is a slightly common Mac crash that has occurred since 4.17.1. Users have not provided any descriptions of their actions when the crash occurred. Callstack from Log[2017.09.28-15.29.17:473][3 ...
Crash Clicking on Enum in BT Decorators After the Enum Has Been Altered
UE - AI - Apr 5, 2017Clicking on a Behavior Tree decorator that references an Enum blackboard key will crash the editor if that Enum has been altered in the method described in the repro steps. If you set decorators to ...
Static Mesh cooking: Bad mesh description should not crash the cooker
UE - Graphics Tools - Modeling Tools - Mesh Editing - Aug 21, 2023FStaticMeshRenderData::Cache has the assertion: checkf(Owner->IsMeshDescriptionValid(0), TEXT("Bad MeshDescription on %s"), *GetPathNameSafe(Owner)); This assertion can be triggered by data erro ...
Projects crash when launching onto Firefox 64-bit
UE - Platform - Mobile - May 8, 2017QAGame crashes when it launched onto Firefox. The following exception occurs with the error message:*Expression (0) failed in D:\UE4_Dev-Rendering\Engine\Source\Runtime\Core\Private\Async\TaskGraph ...
NVIDIA 5080 GPU Crash when launching City Sample with DX12
UE - Graphics Features - Lumen - Apr 16, 2025UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...
ShooterGame: Unable to Find Hosted Match over Wi-Fi on Android
UE - Networking - Jul 27, 2018Android devices cannot find a hosted match over Wi-Fi (IPv4) from another Android device despite being connected to the same Wi-Fi network with matching subnets. The host prints the following messa ...