Overridden Events that can be called in editor are indistinguishable from their parent's counterparts inside of child blueprints

UE - Gameplay - Blueprint Editor - Apr 18, 2019

If an actor has a custom event that can be called in the editor and that event is then overridden by a child blueprint, both events will show up in the details panel. The issue is that these two eve ...

ActorActionUtility / AssetActionUtility does NOT properly work if function has struct paramter

Tools - May 21, 2019

ActorActionUtility / AssetActionUtility use SStructureDetailsView  to show dialog for editing function's parameter ( FBlutilityMenuExtensions::CreateBlutilityActionsMenu ).  But SStructureDetailsVi ...

Mac - Media Player - Web Cam not accessible

Media Framework - Jan 20, 2020

Audio/Video Devices are no longer accessible via Media Player on Mac. User info: "We think it is connected to camera and microphone privacy. We have got a crash trying to access to camera from cust ...

Landscape Layer Masks can't be imported

UE - Graphics Tools - Terrain - Landscape - Jan 3, 2023

Repro Rate: 3/3 This is a live issue that has been tested to occur in //UE5/Release-5.1 at CL 23058290. This is also confirmed to not be a regression since this issue also occurs in //UE5/Release- ...

[AI] Editor crashes when editing values of an FInstancedStruct's TArray inside of a BP

UE - AI - Jun 30, 2023

While using a custom struct that contains a TArray member variable with FInstancedStruct, you cannot edit it in the editor without a crash. Other structs and types work as expected even if they deri ...

Adding SmartObjectZoneAnnotationComponent to a blueprint actor causes a crash when building the package

UE - AI - SmartObject - Jan 30, 2025

If placing an actor with SmartObjectZoneAnnotationComponent added to blueprint actor in a level, it will crash when the level open. As a workaround, adding SmartObjectZoneAnnotationComponent to the ...

WmfMedia: Cannot load media with multiple tracks of the same type

Media Framework - Aug 31, 2016

The currently implementation of WmfMedia player initialization is incorrect in that it creates a playback topology that includes all source tracks, but some of them are disabled. The intent was to e ...

Nullptr dereference in FHeadMountedDisplay::UpdateSplashScreen()

UE - Platform - XR - Apr 5, 2017

A customer has had problems running a game with a splash screen when passing -game flag to the editor. UpdateSpashScreen will call GetCurrentFrame, which can return a nullptr but fails to verify it ...

Packaged builds don't copy over plugin config files

UE - Foundation - Cpp Tools - Plugin System - Nov 21, 2017

We currently do not copy over the Config folder when we are packaging a plugin for inclusion with a packaged game. This is likely because we haven't supported plugin config files in the past, but th ...

[Feature Request] Subclassing UAnimNotifyState_TimedParticleEffect

OLD - Anim - Jan 23, 2019

"have had to modify UAnimNotifyState_TimedParticleEffect in order to subclass it. I added 'ENGINE_API' and removed 'MinimalAPI'. I also needed to move 'ValidateParameters' from 'private' to 'protect ...