[MetaSounds] - Trigger inputs called by Execute Trigger Parameter refire on MetaSounds that become active after virtualization

UE - Audio - MetaSounds - Aug 31, 2023

If trigger execute is called in Blueprint, it will fire every time the sound recovers from being virtual, even if it has not been called again. See video example: [Link Removed] Also occurs in Re ...

Started event of EnhancedInput continues to be triggered when a key is pressed and held down from before the level transition.

UE - Gameplay - Input - Sep 20, 2023

When a key is held down after a level transition, the "Started" event of the Enhanced Input is triggered continuously.  Suspected similar root cause as [Link Removed].  ...

[AI] Navmesh generates incorrect triangles that connect a lower platform to one above it

UE - AI - Navigation - Feb 21, 2023

Navmesh is setting some vertices to be quite above what would be the max step height of the agent when two platforms are aligned with one above the other. The navmesh may reach up to the upper platf ...

Orthographic Rendering - Lumen Reflection Artefacts

UE - Rendering Architecture - Apr 28, 2023

Stateless Connect Handler's SessionId and ClientId checks not working with SteamSockets

UE - Online - Feb 14, 2023

We've had a couple of reports of the recently added session/client id checks in the StatelessConnectHandlerComponent failing when using SteamSockets. The connections fail with the "Rejecting handsha ...

After breaking a level instance without Actor Folders, moving its actors between folders of the world-partition map does not work correctly

UE - World Creation - Worldbuilding Tools - World Partition - Jan 29, 2024

If a standard level (without Actor Folders enabled) is added to a world-partition map (with Actor Folders enabled) as a Level Instance, and then that instance is "broken" so that its actors are inco ...

GameplayEffects: Inherited UAssetTags and UTargetTags do not update their referenced tags correctly with inheritance

UE - Gameplay - Jan 25, 2024

When inherited, it is reasonable to expect the tags added by the parent to be reflected in the children. If the parent is editted after the children, however, tags that are added or deleted are not ...

Parameter distributions can be reset to None in Cascade Particle Systems, causing Cascade to Niagara conversion to crash the editor.

UE - Niagara - Apr 18, 2022

Cascade to Niagara conversion causes the editor to crash due to any distribution parameter in the Particle Emitter being reset to none. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL# 1831 ...

Control Rig editor Preview viewport doesn't display static mesh attachments

UE - Anim - Rigging - Control Rig - Feb 12, 2024

Many of the animation asset editors don't display static mesh attachments in the way that the anim sequence or anim bp editor do.  This prevents users from previewing characters that are built from ...