Unreal Engine Issues

Crash occurs when an element of a fixed-size FText array is edited in a Blueprint.

The Editor can crash if a fixed-size FText array is created. Attempting to edit one of the values of the array in a Blueprint will result in a crash. ...

Copy and paste State in the state machine do not correctly refresh synced objects when it have transition rule(fraction)

Copy and Paste action in State machine do not generate correct info for "AnimGraphNode_SequencePlayer_20" Name for "AnimGraphNode_SequencePlayer_#" in the duplicated state is not changed to corresp ...

Level Editor - cannot select components of a blueprint, itself child actor of another blueprint

No sound plays when using Built-In Spatialization or Simple ITD plugins

No audio can be heard when using the Built-In Spatialization plugin. This is a regression from 4.26. Occurs in 4.27 and 5.0. ...

Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game

Infrequent WaitingTask->IsCompleted crash related to FNiagaraSubmixListener closing QAGame -game Unsure if related to [Link Removed] it was spawned from a group of oodle crashes and this is distinc ...

Destructing NiagaraParameterStores causes multi threading write conflict

FNiagaraParameterStore::UnbindAll() may be called from both GameThread and RenderingThread. Each may modify the same Binding array, it causes infrequent crashes. In my environment, I was able to r ...

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...

Duplicated ChildActor on World Partition Streaming

The issue is encountered when streaming a world partition an actor with an AChildActorComponent which generates 2 instances instead of one when run as a client in the editor. This behavior does not ...

Dynamic (transient) material instance assignment lost if object spawnable

Material Instance Dynamic assigned to Spawnable objects with Editor Utility Widget get reverted when hit the Save button in Sequencer. This appears to come from the Material Instance Dynamic not be ...

A sampling result of DistanceFieldAOHistory is shifted to a wrong position.

DistanceFieldAOHistory introduces ghosting at low scalability and low screen percentages. This can lead to AO artifacts and a ghosting effect from the character. This issue was also observed on //U ...