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 ...
App crashes when executing 'Export to Disk' node on Android
UE - Platform - Mobile - Aug 11, 2020Regression is unconfirmed ...
GPU crash when using RVT BaseColor/Normal/Roughness format
UE - Rendering Architecture - May 24, 2023When using an RVT with BaseColor/Normal/Roughness format on DX12 with a GPU that supports Tier2, a GPU crash may be seen. ...
Get Blackboard Value with null input causes crash
UE - Gameplay - Blueprint - Jan 6, 2015Getting a blackboard value as actor and setting an actor to that on tick causes crash. The real issue here is that you can use a function in BP (in this case `UBTFunctionLibrary::GetBlackboardValue ...
Compile on load crashes for classes within an abstract class
UE - Gameplay - Blueprint Compiler - Feb 20, 2021When compiling on load in -game, a blueprint class that inherits from a native class that is marked within and the class that it is within is abstract, a crash will occur when FBlueprintCompilationM ...
Compiling a grandchild Blueprint via automated test can lead to crash
UE - Gameplay - Blueprint Compiler - Feb 10, 2020The crash doesn't happen if the blueprints are loaded ahead of the test by opening them, or if you compile all of them in the same test run. ...
"Pass-By-Reference" inputs to a multicast RPC can crash
UE - Networking - Oct 6, 2021Passing a parameter by reference for an RPC does not seem to be a supported operation, and UnrealHeaderTool will already throw an error if a networked UFUNCTION includes any OutParms. However, users ...
Crash/ensure when linking anim layers from animation update
OLD - Anim - Mar 12, 2020Originally reported here: https://udn.unrealengine.com/questions/562047/linked-layer-animation-blueprint-proxy-missing-ske.html When linking an anim layer during update, we get either an ensure or ...
Crash if the setting of PhysicalAnimationComponent is changed in the same frame as teleport processing
UE - Simulation - Physics - Apr 24, 2020Crash when ApplyPhysicalAnimationProfileBelow node and UPhysicalAnimationComponent :: UpdateTargetActors by UPhysicalAnimationComponent :: OnTeleport run in the same frame. Because RuntimeInstanceDa ...
Crash in FMaterialUtilities::CreateFlattenMaterialInstance when building Simplified HLOD layer
UE - World Creation - Worldbuilding Tools - HLOD - Aug 17, 2022From licensee: The issue here starts in FVoxelizeMeshMerging::ProxyLOD() where the FlattenMaterial created using FMaterialUtilities::CreateFlattenMaterialWithSettings() returns an empty struct. I d ...