Landscape Change Component Size Tool removes foliage from landscape

UE - World Creation - Worldbuilding Tools - Foliage - Dec 12, 2017

Foliage painted onto a landscape will disappear when Sections per Component is changed from 1x1 to 2x2. Affects 4.17.2 CL 3658906, 4.18.2 CL 3794801, 4.19 Main Possible Workaround is to set the Re ...

LIVE: ProjectileMovement component does not function when a PrimitiveComponent is missing or removed from the Components

UE - Simulation - Physics - Nov 18, 2014

A projectile brought over from 4.5.1 or earlier that does not have a Primitive Component as the Root, or removing the root from the projectile in 4.6, returns an error: "Movement component [Projecti ...

abnormal sound output on UMG animation track

UE - Anim - Sequencer - Jan 28, 2022

Sound repeated at initial frame only on 4.27. it was worked fine on 4.26 and 4.25 It is probably a side effect caused by the sequencer changes below.​ Sequencer: Move Finalization phase back onto ...

Solidworks exporter installation does not proceed

UE - Editor - Content Pipeline - Datasmith - Exporters - Dec 9, 2021

3 users reported the same issue. DEBUG: Error 2203: Database: 1031. Cannot open database file. System error -2147287038  or DEBUG: Error 2203: Database: 1036. Cannot open database file. System err ...

[CrashReport] UE4Editor_D3D11RHI!VerifyD3D11CreateTextureResult() [d3d11util.cpp:276]

UE - Graphics Features - Mar 30, 2017

This crash seems to be related to or a continuation of [Link Removed], where that specific CrashGroup stopped receiving new crashes after the 4.10 release. This one has occurred from 4.13 - 4.15 (s ...

Reset Instance Changes to Blueprint Defaults does not reregister components

UE - Framework - Blueprint Editor - Jan 17, 2024

For map placed blueprint actors with components with property modifications, when triggering Reset Instance Changes to Blueprint Default from the actor instance's Details panel, any components with ...

[CrashReport] UE4Editor_Kismet!FBlueprintGraphArgumentLayout::OnArgNameChange()

UE - Gameplay - Blueprint Editor - Jul 19, 2017

This is a common crash affecting users in 4.16 and has been occurring since at least 4.14 affecting more than 300 unique users. User Descriptionsi made a macro called IsolateYaw and set the input t ...

TickComponent and PostPhysicsTick in SkeletalMeshComponent can cause simultaneous read/write access

UE - Anim - Runtime - Jan 18, 2023

When a SkeletalMeshComponent is restarted by calling in order of   SetSimulatePhysics and SetComponentTickEnabled, the TickComponent and EndPhysicsTick are executed simultaneously. As a result, the ...

Inconsistent Prioritization of Navigation Modifiers

UE - AI - Dec 12, 2016

When working with Nav Modifiers in a level that contains objects that have a custom Nav Area class, the prioritization of the modifiers is not consistent. If you notice in the attached project, so ...

Blueprints from UE4 with dangling delegate reroute node crashes on UE5 load

UE - Gameplay - Blueprint Compiler - Dec 22, 2023

If a project from UE 4.27 or earlier has a blueprint with a reroute node dangling (no outgoing connection) from a Custom Event Node's delegate pin (red), this blueprint will crash when loaded in UE ...