Unreal Engine Issues
Unreal Engine Issues
Sequencer Playlist - Triggering a playlist will crash every other editor on a Multi-user session
UE - Virtual Production - Tools - Sequence Playlist - Nov 24, 2022[Link Removed] ...
Geometry Collection crashing BP Simulation when set to enable Physics via Event Graph
UE - Simulation - Physics - Destruction - Dec 2, 2022Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Issue does not occur when user Simulates in level viewport, nor when geometry collecti ...
IOS project builded with Metal 2.1 and launched from Xcode will cause crash
UE - Platform - Mobile - Aug 5, 2019GPU Crash may occur when using Nanite Tesselation on landscape with several shadow casting local lights
UE - Graphics Features - Nanite - May 5, 2025The GPU may time out in NaniteSplit when drawing VSM shadows for Nanite Tessellated landscape with in a scene with several local shadowed point lights. The issue doesn't reproduce in 5.6, likely to ...
Crash when importing an Alembic file with Materials as a different asset type than one that already exists
UE - Gameplay - Aug 8, 2016This will occur when changing between all Import Types (so long as Create Materials is checked). The callstacks are slightly different depending on which Import Type you switch to. [Link Removed] ...
Crash with WorldPartitionRenameDuplicateBuilder when duplicating a World Partition Level with actors referencing Data Layer Assets
UE - World Creation - Worldbuilding Tools - Data Layers - Jul 23, 2024ODSC - Launching a newly created project via UnrealFrontend fails to load some materials and crashes
UE - Rendering Architecture - Materials - Sep 6, 2021The same repro steps on 4.26.2 will launch the project successfully. Packaging a project once to create complete ShaderMaps will work around the issue. ...
Crash after enabling iOS Metal Desktop Renderering and then enabling iOS SM5 Preview Rendering Level
UE - Rendering Architecture - RHI - Nov 15, 2022IOStore : Packaged game crashes when doing garbage collection right after cancelling async loading by UnloadPrimaryAssetList
UE - Foundation - Core - RuntimeLoader - Mar 15, 2021Packaged game without IOStore never hits this error. ...
Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.
UE - Gameplay - Mar 23, 2018User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...