Crash calling destroy actor for Geometry Collection while it's simulating

UE - Simulation - Physics - Destruction - May 12, 2020

Crash occurs when user call Destroy Actor on a Geometry Collection Actor. This seems to only occur while the actor is simulating. If called while on the ground, it doesn't seem to occur. ...

Crash when launching a packaged project where a code class gets a reference to a Blueprint widget that contains an instance of a Blueprint struct

UE - Gameplay - Blueprint - Aug 3, 2017

A packaged project will crash on launch if a code class uses ConstructorHelpers::FClassFinder to get a reference to a Blueprint Widget that contains a Blueprint struct variable. Disabling EDL in the ...

Ensure When Setting Simulate Physics of a Child Actor on the Server and Forcing NetUpdate

UE - Networking - Jan 5, 2017

An ensure is being triggered when you set simulate physics on a child actor on the server and then force net update. Found in 4.14.2 CL# 3241561. Reproduced in 4.16 Main CL#3247538 ...

Struct Boolean value can be changed when using a Set node for the struct in Blueprints

UE - Gameplay - Blueprint - Aug 21, 2018

If a struct has a property with the EditCondition meta after a Boolean property that is set to the Boolean property, this Boolean property will be changed inadvertently when a Set node is used for ...

World-locked stereo layers for SteamVR are not positioned correctly

UE - Platform - XR - Nov 14, 2017

World-locked stereo layers don't seem to be in the correct place when viewed in SteamVR. In 4.16, if you Subtracted the difference of VR origin location and world origin location and offset the pos ...

Root Motion (RMFE) - Blend with cached pose causes inaccurate root motion

UE - Anim - Gameplay - May 28, 2015

With Root Motion From Everything enabled, a Blend node gives different results when feeding it Animation Sequences directly or when first using a Cached Pose. *Simple test project attached Two sce ...

Scroll Box Dragged State Persists After Input Mode Change

UE - Editor - UI Systems - Slate - Oct 31, 2024

This is an edge case occurring when changing Input Mode while the Scroll Box is being dragged. When the Input Mode switches to Game Only, further drag actions are no longer possible. However, becaus ...

Crash when creating a USkeletalMeshComponent inside a UMotionControllerComponent

UE - Anim - Runtime - Jan 11, 2023

This is not a Regression. Tested in //UE5/Release-5.0 CL23058290. Crash occurs when creating a USkeletalMeshComponent inside a UMotionControllerComponent when applied to a Character. Commenting out ...

Cannot continuously change Bone Name in SkeletalMesh Sampling Settings

UE - Anim - Jun 14, 2024

An access violation occurs in FNiagaraSkeletalMeshRegionBoneFilterDetails::HandleBoneNameComboBoxSelectionChanged() due to StringItem is nullptr. SkeletalMeshRegionCustomization.cpp void FNiagaraS ...

iOS package with Metal Desktop Renderer enabled crashes on iPhone

UE - Rendering Architecture - RHI - Oct 11, 2024

iOS package with Metal Desktop Renderer enabled crashes on iPhoneThis issue does not occur if Metal Desktop Renderer is disabled ...