Set Material for Particle System via Construction Script in Blueprints is Different is PIE versus Standalone

UE - Graphics Features - May 25, 2017

Differences in PIE and Standalone when attempting to set the Material for a Particle system within the construction script of an actor blueprint. I know there are probably some differences in how P ...

Precomputed Visibility incorrectly Culling Objects in Scene when Opening different Level

UE - Graphics Features - Jun 28, 2017

Objects in a scene are randomly culled when building a level with Precomputed Visibility enabled, and opening another level that has already pre-built precomputed visibility. A couple of things wor ...

Crash on checking event track key property after setting static mesh reference element

UE - Anim - Sequencer - Oct 19, 2017

Event track key with a structure containing staticmesh reference. Setting the staticmesh then reopening the property crashed the editor. ...

Enum can lose value in Child actors with component containing a Map of Structs

UE - Gameplay - Blueprint - Apr 12, 2018

Value in an Enum in a Struct in another Struct assigned to a Map in a Component with the Component used on a Child Pawn Class can be reset upon editor relaunch. User submitted bug. (Unsure what int ...

Find and replace reference feature(experimental) crashes after indexing dialog

UE - Gameplay - Blueprint Editor - Jan 30, 2019

FindInBlueprints->CacheAllBlueprints(FSimpleDelegate::CreateSP(this, &SReplaceNodeReferences::OnSubmitSearchQuery, true), EFiBVersion::FIB_VER_VARIABLE_REFERENCE);  This leads to crash. Users can b ...

Flipped Tracker axes when using Vive Trackers with Vive Wands

UE - Platform - XR - Mar 15, 2019

Using pucks with motion controller will cause the tracking pucks x and z axes to flip. ...

Deleting elements from TMap Struct in actor blueprint editor causes Crash

UE - Editor - UI Systems - Slate - May 24, 2019

Deleting elements from TMap Struct in the Actor Blueprint Editor (specifically, deleting elements from them) causes Unreal to crash ...

Exception crash when running Debug Game Configuration for a project installed on a different drive than Engine Installation

UE - Foundation - Cpp Tools - Jan 13, 2020

Exception crash when running Debug Game Configuration for a project installed on a different drive than Engine Installation. ...

Native struct types that declare one or more non-UPROPERTY fields are not initialized with the default value from a modified Blueprint CDO.

UE - Gameplay - Blueprint - Feb 12, 2020

Dynamically-spawned instances of a Blueprint class go through an optimized property initialization pass (see UBlueprintGeneratedClass::BuildCustomPropertyListForPostConstruction() and InitProperties ...

Two animation assets are created when Pawn is recorded in TakeRecorder.

UE - Anim - Sequencer - Jul 21, 2021

If you specify a Level Sequence of "TakeRecorder_Skeletal" in step 3, there will be only one animation created. The licensee wants this to be the same behavior. ...