Unreal Engine Issues
Unreal Engine Issues
Crash after generating HLODs for approximated meshes that have all triangles culled
UE - World Creation - Worldbuilding Tools - HLOD - Apr 26, 2023The crash occurs when FWorldPartitionHLODUtilities::BuildHLOD attempts to build an approximated mesh that has all of its contents culled during generation, this can happen when an approximated mesh ...
Cooking fails with a Nanite Landscape and 3D text asset
UE - Virtual Production - Avalanche - Sep 20, 2023Adding a 3D text actor to a level with a Nanite landscape causes cooker to hit an assert Tested in the Following //UE5-Release-5.3-CL-27405482 ...
When Sequencer's Add Filter Menu>Keyed(U) is enabled, adding a Key to an actor that previously failed the Filter (had zero Keys) does not immediately include the Keyed actor in the filtered list (if fails FSequencerTrackFilter_Keyed::PassesFilter)
UE - Anim - Sequencer - Jun 25, 2025When Sequencer's Add Filter Menu>Keyed(U) is enabled, adding a Key to an actor that previously failed the Filter (had zero Keys) does not immediately include the Keyed actor in the filtered list (if ...
Editor crashes when opening a project that includes a plugin with more than two custom Volume classes
Tools - Jun 7, 2017Adding more than two custom Volume classes to a plugin results in any project that includes that plugin crashing when opening it in the Editor. There does not appear to be a problem with adding thre ...
EditConditionHides on Member of struct, that is in Array, causes Assertion Failed when clearing Array in Data Table
UE - Editor - Nov 23, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...
[AI] UE_MT_SCOPED_READ_ACCESS(NavElementAccessDetector) Fails in editor on fresh sync
UE - AI - Navigation - Jan 27, 2025Licensees have reported failed multi-thread access code for NavElementAccessDetector in complex levels that have not finished compilation of their static meshes. The eventual failed check is inside ...
Connecting GetSequenceBinding node to LevelSequence including Spawnable Actor etc. will result in error
UE - Gameplay - Blueprint Editor - Feb 22, 2018[Link Removed] ・Open attached project ・Open NewMap ・Confirm that an error appears on the console ・When creating a Windows (64-Bit) package in this state, the same error occurs ...
FTextLocalizationManager::UpdateFromLocalizationResource is discarding data
UE - Editor - UI Systems - Localization - Mar 1, 2016FTextLocalizationManager::UpdateFromLocalizationResource is loading LocRes data into a temporary, rather than loading it into a reference to an entry in LocalizationEntryTrackers. ...
[CrashReport] UE4Editor-MetalRHI!FMetalCommandBufferDebugHelpers::TrackResource(id<MTLCommandBuffer>, objc_object*) [MetalCommandBuffer.cpp:147]
UE - Rendering Architecture - RHI - Dec 10, 2019Generated from CrashReporter ...
Gameplay Tag Query using NoTagMatch expression does not construct DebugString properly
UE - Gameplay - Nov 1, 2018The code in GameplayTagContainer.cpp has code for generating debug strings representing tag queries. Compare the code in EmitTokens in all other queries to the code in UEditableGameplayTagQueryExpre ...