Unreal Engine Issues
Unreal Engine Issues
Blueprint Array/Map properties with DefaultToInstanced types are not instanced properly
UE - Gameplay - Blueprint - May 6, 2019At a licensee, I discovered a problem where Blueprint-created array and map properties are not correctly propagating the ContainsInstancedReferenced property flag. This means that if you create a Ma ...
Fill Data Table from CSV File crashes editor if the data table is open
Tools - May 6, 2019Attempting to use the Fill Data Table from CSV File node will result in a crash if the CSV file is open when running. ...
Trigger Montage Ended Event results in Unhanded Exception
OLD - Anim - May 6, 2019TriggerMontageEndedEvent is calling RemoveAtSwap after the NotifyEnd callback which is not safe if the ActiveAninNotifyState array is modified by the callback. WorkAround: Add a Delay node befo ...
TrackFieldData and SubSectionFieldData structs not properly being serialized during cook in the Precompiled Evaluation Template
UE - Anim - Sequencer - May 3, 2019During compile on the fly if the evaluation field is invalidated SubSectionField data will not have been properly serialized and the meta data will not be populated correctly, as the custom serializ ...
Niagara GPU particles will always have a lifetime of one second if they use a Collision Module
UE - Niagara - May 2, 2019GPU Particles will always have a lifetime of one second when using a collision module. This is a result of an issue with how off screen timing is handled. GPU particles that are off screen should on ...
PVehicleDrive not null-ed in UWheeledVehicleMovementComponent::OnDestroyPhysicsState
UE - Simulation - Physics - Apr 30, 2019PVehicleDrive is not null-ed during OnDestroyPhysicsState, which can lead to crashes during future function calls. ...
Assertion failed after closing project on Oculus Mobile - Referencing AudioMixerSourceManager.cpp:300
UE - Audio - Apr 30, 2019This assertion seems to occur when closing the project while a sound is playing on the device. Assertion failed: CommandBuffers[NextIndex].SourceCommandQueue.Num() == 0 [File:D:/P4Workspaces/Switch ...
FAnimInstanceProxy::LODLevel isn't initialized, causing UB in PreUpdate
OLD - Anim - Apr 29, 2019FAnimInstanceProxy::LODLevel isn't initialized before it is used in PreUpdate, causing UB on the first call. ...
DevelopmentServerLauncher.exe loops whenever the editor is open even if no iOS devices are connected
UE - Platform - Mobile - Apr 29, 2019A user has reported that DeploymentServerLauncher.exe will continue to poll for devices even if no iOS devices are connected. I am under the impression that this is so that Windows can poll for iOS ...
[CrashReport] libUE4Editor-VulkanRHI.so!FVulkanCommandListContext::RHIDrawIndexedPrimitive(FRHIIndexBuffer*, int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int) [VulkanCommands.cpp:818]
UE - Rendering Architecture - RHI - Apr 29, 2019Generated from CrashReporter ...