Unreal Engine Issues
Unreal Engine Issues
Dragging and dropping new materials into Dynamic Material Instance slot results in crash
UE - Rendering Architecture - Materials - Sep 11, 2020Data 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 ...
Lyra standalone game instance crashes when Player #2 equips new weapon
UE - Gameplay - Input - Apr 5, 2022Discovered while testing Lyra project for //UE5/Main - Foundation Shelf - FAssetDataGatherer Stall Fix Smoke. This issue is NOT dependent on the shelf and occurs without the unshelved files. This ...
Performing a launch on to windows, and then enabling world HLOD and opening the outliner will crash the editor
UE - World Creation - Worldbuilding Tools - HLOD - Jun 5, 2017Sessions Frontend crash when launching the "renderer" automation section without ray tracing enabled
UE - Graphics Features - Jul 7, 2022Looks like we only need a way to disable the usage of these tests from running if ray tracing is disabled as they are ray tracing only tests. ...
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 ...
GPU 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] ...
ODSC - 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. ...