Unreal Engine Issues
Unreal Engine Issues
Bug when trying to Ctrl+Z after Replace Actors
UE - Editor - Workflow Systems - Dec 22, 2023From the UDN case #00649142: My team noticed a bug where sometimes when using "Undo" (Ctrl+Z usually) the BP they are working on disappears in the level. We were able to find a 100% repro case when ...
'Max World Position Offset Displacement' causes culling issue on HISMC/foliage in 5.4
UE - Rendering Architecture - Materials - Jul 9, 2024Foliage/hierarchical instanced static mesh components have issues with culling when their material's "Max World Position Offset Displacement" value is a higher amount, e.g. 100.0. ...
MetaSounds isn't working with Modular Game Features - LogMetaSound: Error: Target interface is not registered
Audio-Gameplay-Engineering - Nov 22, 2022Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Errors:[2022.11.22-18.11.28:472][ 0]LogMetaSound: Error: Target interface is not regi ...
Divergent group barriers in Lumen
UE - Graphics Features - Lumen - Apr 23, 2025Intel reported GPU crashes on their hardware caused by divergent group barriers in ScreenProbeConvertToIrradianceCS:[numthreads(THREADGROUP_SIZE, THREADGROUP_SIZE, 1)] void ScreenProbeConvertToIrra ...
Editor crashes when setting return value pin to object variable in widget blueprint
UE - Gameplay - Blueprint - Apr 9, 2015Editor crashes when attempting to set an object variable to a return value within widget blueprints. Frequency: 2/2 Crashreporter: [Link Removed] ...
When use Sequence Camera Shake Pattern, Level Sequence occurs error
UE - Anim - Sequencer - Mar 28, 2022When I apply the Sequence Camera Shake Pattern to a Sequencer's camera, I get an error when playing it. ...
Opening a DataTable that is set to a Struct that is using a Key variable will crash the editor
Tools - Nov 3, 2015Opening a DataTable that is set to a Struct that is using a Key variable will crash the editor User Description: I'm getting this crash when using Key variable in DataTable. I was able to repro i ...
Creating an AnimStreamable asset immediately crashes the editor
UE - Anim - Runtime - Feb 6, 2024When creating an anim streamable we immediately fail a check in the compression code in FCompressibleAnimData::FetchData: checkf(AnimSequence, TEXT("Invalid animation sequence while trying to fetc ...
LIVE: LANDSCAPE: RENDERING: Landscape smooths until edited again after saving
UE - Graphics Features - Sep 15, 2014Build: 4.4.2-2289767 Description: If a user makes changes to a landscape then saves the project, the landscape will appear smoothed until another change is made. Repro: [Reproduced Internally] 1. O ...
Show progress/cancel button during lengthy destruction fracture
UE - Simulation - Physics - Jul 25, 2014When the 'Fracture' button is clicked on a Destructible Mesh made from SM_MatPreviewMesh_02, the editor immediately freezes and stops responding. ...