Unreal Engine Issues
Unreal Engine Issues
Problem importing broken FBX
UE - Editor - Content Pipeline - Import and Export - Nov 25, 2021An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...
SkinnedMeshComponent::BoneTransformUpdateMethodQueue is never reset in server builds
UE - Rendering Architecture - Jan 27, 2025We reset BoneTransformUpdateMethodQueue in USkinnedMeshComponent::CreateRenderState_Concurrent and USkinnedMeshComponent::SendRenderDynamicData_Concurrent but these code paths are never called in se ...
Renaming function in parent class that is overridden by child causes an ensure
UE - Gameplay - Blueprint - Aug 5, 2016Extremely similar repro to [Link Removed], except in this case the parent function has no parameters or return values. Also encountered a one-off crash while exploring repro methods, but was unabl ...
[CrashReport] UE4Editor_Engine!FStaticMeshSceneProxy::SetIndexSource() [staticmeshrender.cpp:679]
UE - Graphics Features - Aug 31, 2018No user comments in crash group 675 if ( bRequiresAdjacencyInformation ) 676 { 677 check( LODModel.bHasAdjacencyInfo ); 678 ***** OutElement.IndexBuffer = &LODModel ...
Draw to Render Target Android Regression
UE - Graphics Features - May 15, 2019Regression in Draw Material to Render Target functionality. Enabling Mobile HDR is a workaround. Android tested with Note 4 Unable to verify Main CL 6395234 (Crash on Phone) No repro on iOS mo ...
Montage_SetEndDelegate doesn't set for inactive, but unfinished montages, preventing clearing
OLD - Anim - Jan 7, 2020If you call Montage_SetEndDelegate after a montage has begun blending out, but before it terminates, the end delegate will not be set because an active montage instance cannot be found. If an AI is ...
Opening map assets from "Open World Demo Collection" causes engine to freeze
Docs - Samples - Mar 9, 2020Opening map assets from the "Open World Demo Collection" sample results in the engine freezing. No crash occurs, just a lock up of the engine at 75%. There is the possibility that it could take s ...
[CrashReport] UE4Editor-CoreUObject!UStruct::SerializeVersionedTaggedProperties(FStructuredArchiveSlot,unsigned char *,UStruct *,unsigned char *,UObject const *) [Class.cpp:1478]
UE - Gameplay - Blueprint - May 22, 2020User comment: "Crash at compile array blueprint" Error MessageAssertion failed: Tag.Size == Loaded [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/Class.cpp] [L ...
Child Actors should seamlessly travel with their Parents
UE - Gameplay - Components - Dec 22, 2016When an Actor is identified to seamlessly travel, its child actors should also seamlessly travel with it (or maybe it should be an optional flag), rather than destroying and recreating on the other ...
[CrashReporter] UE4Editor-AlembicHairTranslatorModule!ParseObject [AlembicHairTranslator.cpp:446]
UE - Editor - Content Pipeline - Import and Export - Dec 13, 2019Generated from CrashReporter Error message: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x60b40008 Comments from Users: I cant import abc hair from Blender 2.81a. crashe ...