Unreal Engine Issues
Unreal Engine Issues
Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin
UE - Gameplay - Jun 3, 2016Physics enabled Child Actor components that spawn with with a delay, always spawns at world origin **This is a regression. It was working in 4.11.2 Could also be related to: [Link Removed] User D ...
Non-Struct CDO component properties display incorrectly in the property editor.
UE - Gameplay - Blueprint - Aug 17, 2016UObjectProperty properties within a UActorComponent class aren't exposed for editing in the Details panel when choosing to edit native component defaults in the BP editor. ...
Property "GameFeatureData.PrimaryAssetTypesToScan.Directories" should be tagged with "ForceShowPluginContent"
UE - Core - Systems - Oct 11, 2025When using a Game Feature Plugin, one of the settings available in the "GameFeatureData" DataAsset (class UGameFeatureData) is "PrimaryAssetTypesToScan", which is an array of FPrimaryAssetTypeInfo s ...
A build may fail in Visual Studio if a space is added after the # in an include pre-processor instruction to allow a struct in one header file to reference a struct in the other
UE - Foundation - Core - Sep 23, 2016A project building in Visual Studio will sometimes fail with the error Unrecognized type 'FBar' - type must be a UCLASS, USTRUCT or UENUM. This can occur in situations where one struct was reference ...
Hot Reload crash on PIE with custom AIController and Perception Component
UE - AI - Sep 29, 2015If a pawn in the level is using a custom AI Controller that sets the AIPerceptionComponent in code, the editor will crash on PIE after a hot reload. CrashReporter: [Link Removed] ...
StartCameraFade() breaks on mobile projects after editor is closed/reopened
UE - Platform - Mobile - Oct 6, 2015If a project that is set to Mobile/Tablet and Scalable 3D or 2D uses StartCameraFade() to produce a fade in effect, the effect will not play in PIE if the editor is closed/reopened. ...
Values are not copied for a EnumArray that is part of an exposed Struct Variable
UE - Gameplay - Blueprint - Jun 21, 2016Values are not copied for a EnumArray that is part of an exposed Struct Variable; when copying from the Details panel to a copy of the same actor. User Description: If you make an array of custom ...
Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator
UE - AI - Jun 16, 2015Crash occurs if the Recast Navmesh is set to Dynamic and the BehaviorTree runs a 'Does Path Exist' decorator. Crashreporter info: [Link Removed] ...
Linux Crash Reporter can fail due to exceeding crash malloc space when generating the report
UE - Platform - Linux - Sep 16, 2026On Linux a crashing process can fail to produce a crash report at all. The crash folder is created and contains CrashContext.runtime-xml and Diagnostics.txt, but the copied log file is 0 bytes, Cras ...
Toggling SetSimulatePhysics state on a Primitive component with a child PrimitiveComponent leaks PxShapes
UE - Simulation - Physics - May 23, 2016FBodyInstance::Weld did not check to see whether or not child components were already welded to a parent. This meant that whenever Weld was called, ShapeToBodiesMap would continue to grow in size, e ...