Unreal Engine Issues
Unreal Engine Issues
Dropping a packet containing an initial replication for a Custom Delta Property breaks replication
UE - Networking - May 6, 2019Custom Delta Property NAK handling is done via Custom Delta Base States. Whenever we replicate a CDP, we have the implementing code return a Custom Delta Base State. However, before a CDP is ever re ...
Spline Component Array Logic resulting in "Editor soft lock"
UE - Gameplay - May 6, 2019ReRunConstrictionScripts() on Tick() is causing an Editor "Soft- Lock" slow-down, When dragging a Spline Actor created from Blueprint; which utilizes custom construction script logic detailed in the ...
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 ...
Clearing a search query in My Blueprints tab collapses all sections
UE - Gameplay - Blueprint Editor - May 6, 2019After clearing a search query in the My Blueprint tab in the blueprint editor, all the sections will be collapsed even if they were expanded prior to searching. ...
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 ...
Deprecated: CharacterMovementComponent::bRequestedMoveUseAcceleration
UE - Gameplay - Player Movement - May 3, 2019Licensee has brought into question the difference between NavMovementComp::bUseAccelerationForPaths Vs. CharacterMovementComponent::bRequestedMoveUseAcceleration. This led to a discussion in a Supp ...
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 ...
Niagara Components can unregister themselves in the process of component registration
UE - Niagara - May 1, 2019Spawn system attached with a system where bAutorDestroy is true and one data interface is invalid will crash the engine. ...