Project upgrade to 4.15 does not complete if the Runtime Mesh Component is installed in version 4.14 and not in 4.15

UE - Foundation - Core - Apr 17, 2017

If the Runtime Mesh Component is installed in the 4.14 Binary Engine, upgrading a copy of a code project from 4.14 to 4.15, even if it does not use that plugin, will result in the upgrade process ha ...

Gradle AAR repository directories with $S(PluginDir) are relative instead of absolute path

UE - Platform - Mobile - Aug 1, 2017

Gradle AAR import paths need to be absolute instead of relative since the current work directory used to package Gradle is not the same as Ant. ...

Rendering sequence with livelink data has issues with smooth engine offset

UE - Virtual Production - IO - LiveLink - Apr 26, 2023

[Link Removed] for reference Playing back a sequence shouldn't have buffered samples. We should have a single one, which was built from the sequence. We need to make sure when played back that it ...

Having two Play Persistent Audio modules in Niagara will only play the first sound

UE - Niagara - Jan 24, 2024

Only one Play Persistent Audio module will work at a time in a Niagara emitter. ...

'Max World Position Offset Displacement' causes culling issue on HISMC/foliage in 5.4

UE - Rendering Architecture - Materials - Jul 9, 2024

Foliage/hierarchical instanced static mesh components have issues with culling when their material's "Max World Position Offset Displacement" value is a higher amount, e.g. 100.0. ...

MakeEditWidget doesn't work with the blueprint editor viewport

UE - Framework - Blueprint Editor - Dec 19, 2024

Using the MakeEditWidget specifier inside a UPROPERTY macro and creating a blueprint based on the class will show the translation gizmo inside the main editor viewport but the gizmo will not show up ...

Collision boxes slow to move when using higher poly meshes

Tools - Jun 15, 2015

Collision boxes become sluggish to move when using higher poly meshes. High poly boxes attached (60 K and 120K tris) Users Video for reference: [Link Removed] ...

Changing component type in code breaks blueprint details for the component

UE - Gameplay - Blueprint - Jul 7, 2015

If the VisibleAnywhere specifier is use in the UPROPERTY macro of a code based component, changing that component from one type to another (from USphereComponent to UBoxComponent for example) will c ...

Enabling Use Pawn Control Rotation on a SpringArm component does not set the rotation values to zero, and subsequent rotation is not allowed after the setting is disabled

UE - Gameplay - Player Movement - Jan 2, 2016

Enabling Use Pawn Control Rotation on a SpringArm component does not set the rotation values to zero. Subsequently disabling Pawn Use Control Rotation make rotation of the component impossible until ...

Teleporting to the World Location of a Scene Component in a packaged game will crash the game

UE - Gameplay - Blueprint - Jun 1, 2015

Teleporting to the World Location of a Scene Component in a packaged game will crash the game. Teleporting to the Actor Location does not cause this crash. Crash log attached. Nothing is showing up ...