Unreal Engine Issues
Unreal Engine Issues
Crash when copy and paste a Child Actor Component in blueprint.
UE - Gameplay - Blueprint - Nov 14, 2018A crash occurs when copy and paste the ChildActorComponent, only if the template actor has a DefaultSubObject. There is no crash in the case of using Actor (eg. AActor) without a DefaultSubObject as ...
Selecting Reimport on a virtual texture results in crash
UE - Graphics Features - Nov 14, 2019Reimporting a virtual texture results in a crash. Tested in: 4.24P2 CL#10091930 , 4.25 CL#10183780 ...
Renaming actors between levels during PIE causes issues
UE - World Creation - Worldbuilding Tools - OFPA - Dec 4, 2023When renaming actors during PIE the actor generates a new, non memory/temporary, actor package underneath the PIE world- this is then causing checks in EnumerateMemoryAssetsHelper (in AssetRegistry. ...
Cooked content results in crash on launch of QAGame.exe
UE - Graphics Features - Feb 22, 2019Seems to be an issue with how the cooker is calling the contents of TM-ShaderModels. ...
SetHitResultFromShapeAndFaceIndex crash
UE - Simulation - Physics - Nov 15, 2019SetHitResultFromShapeAndFaceIndex calls if(PxMaterial* PxMat = PShape->getMaterialFromInternalFaceIndex(FaceIndex)) { OutResult.PhysMaterial = FPhysxUserData::Get<UPhysicalMaterial>(PxMat->userD ...
ensure(PinHelpers::UnresolvedPins.Num() == 0); fails after undoing in the editor
UE - Framework - Blueprint Editor - Sep 6, 2025The underlying cause is some edge case involving a math expression node, which does some perhaps naive things with a contained graph. ...
Crash when importing Alembic data with a large number of vertices if Merge Meshes is enabled.
UE - Editor - Content Pipeline - Datasmith - May 26, 2022Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor
UE - Simulation - Physics - Jun 20, 2016Grabbing a Destructible Mesh Child blueprint with a Phsyics Handle crashes the editor during PIE. NOTE: This issue occurs whether or not simulate physics is active on the destructible mesh compone ...
Missing material bake output index entry for mesh(section)
UE - World Creation - Worldbuilding Tools - HLOD - May 15, 2024Pasting a folder on the Outliner while LightMixer and ViewChanges windows are open/docked crashes the Editor
UE - Virtual Production - Tools - Jun 12, 2025When both LightMixer and ViewChanges windows are open, pasting a folder into the Outliner crashes the editor. For more detailed steps, refer to the Steps To Reproduce section. This happens whenever ...