Unreal Engine Issues
Unreal Engine Issues
Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified
UE - Anim - Sequencer - Aug 13, 2019BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...
When using Set Master Pose Component, crash occurs when target has cloth
OLD - Anim - May 18, 2017Description: Appears directly related to using Set Master Pose Component when the target component has cloth Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Lin ...
[CrashReport] UE4Editor_SlateCore!FHittestGrid::FindFocusableWidget<<lambda_3a8b364273a2882da220e6e492096c17>,<lambda_d0075a811a928600995d1b2de6795365>,<lambda_105424556dbaeebf7f5bf9bed3e2f737> >() [hittestgrid.cpp:397]
UE - Editor - UI Systems - Jun 18, 2018No user comments in crash group 394 for (StrideCellPoint[StrideAxis] = StrideAxisMin; StrideCellPoint[StrideAxis] <= StrideAxisMax; ++StrideCellPoint[StrideAxis]) 395 { 396 ** ...
Sequencer fails to package during Build command for ASTC
UE - Platform - Mobile - Jan 15, 2017When attempting to test for ESDSR on Android, the Sequencer project fails to package towards the end of the Build Command. Runtime/OpenGLDrv/Public\OpenGLESDeferred.h(267,5) : warning: 'OPENGL_ES2 ...
[CrashReport] UE4Editor_Core!FWindowsWindow::Initialize() [windowswindow.cpp:199]
Tools - Mar 1, 2017Error message: Assertion failed: 0 [Link Removed] [Line: 199] Window Creation Failed (1158) Source Context: 184 VirtualHeight = ClientHeight; 185 186 // We call reshape w ...
Data Asset Deserialization crash after upgrading 4.19.2 to 421.1
UE - Foundation - Core - Feb 7, 2019The User has provided an extensive log of their code base setup, and the process leading up to when the Assert occurs. "Our game mode & player state FSM are setup in a data driven manor using UDa ...
OSVR Attempts to initilize when no runtime installed and during packaging for GearVR
UE - Platform - XR - Apr 28, 2016Full log attached below: During packaging many log show that it is trying to initialize and i do not have the runtime installed. Snippets from a portion of the log[2016.04.28-15.05.46:033][ 0]OSV ...
[CrashReport] UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHICreateUniformBuffer() [d3d11uniformbuffer.cpp:218]
UE - Graphics Features - Jun 12, 2018No user comments in crash group 208 check(Layout.ResourceOffsets.Num() == NumResources); 209 210 for (int32 i = 0; i < NumResources; ++i) 211 { 212 ...
[CrashReport] FGenericPlatformMemory::OnOutOfMemory | TArray<FCompressedChunk,FDefaultAllocator>::ResizeTo
UE - Foundation - Core - Jul 20, 2017This is a common crash affecting users in 4.16, and has occurred since at least 4.12 for more than 200 unique users. The callstack has similarities to [Link Removed], and as-such may be out of our ...
Crash When Loading Cooked Material Assets in Editor Due to Shader Serialization
UE - Rendering Architecture - Shaders - Aug 27, 2025In Unreal Engine 5.6+, the new shader serialization logic in FShaderMapResourceCode::Serialize does not correctly handle cooked assets that are loaded back into the editor (e.g., from a mounted .pak ...