"For Each" Node doesn't show up in UMG Graph until an Actor BP is loaded

UE - Gameplay - Blueprint Editor - Apr 18, 2022

[Link Removed] ...

Altering interface outputs/inputs causes compile errors on blueprints calling interface

UE - Gameplay - Blueprint - Sep 4, 2015

If an interface is called in a blueprint and then altered, the blueprint will receive a compile error until the interface is removed and re-implemented. ...

Undo Delete Subcomponent/Child Actor of Blueprint while Playing Causes Crash

UE - Gameplay - Blueprint - Mar 12, 2015

The title pretty much explains it all. When creating a blueprint and using a subcomponent or child within that blueprint, deleting the child actor, and then undoing while in play, causes crash. ...

OnComponentEndOverlap and GetOverlappingActors are not in sync

UE - Gameplay - Dec 23, 2014

GetOverlappingActors will return a value when used immediately after OnComponentEndOverlap. Putting a delay after the OnComponentEndOverlap call will result in GetOverlappingActors to return null, s ...

UV Import layout error increases with movement of UVs away from 0-1 Space

Tools - May 27, 2015

When a user sets up an unwrap using a space outside the original 0 to 1 space the unwrap will increasingly show errors of positioning. For Example, in the following images the lower left vertex of ...

Warnings appear when playing a Sequence while in PIE

UE - Anim - Sequencer - Apr 24, 2017

While executing [Link Removed] Sequencer - Recording - Basics - Template – attempting to view a recorded sequence while in PIE triggers a set of warnings each time the play button was pressed. LogUO ...

DECLARE_EVENT Broadcast() can be invoked outside of it's contained class.

UE - Foundation - Core - Jan 2, 2019

In UE 4.21, The current functionality that exists for DECLARE_EVENT Broadcast() does not function as the docs describe: [Delegate Events|https://docs.unrealengine.com/en-us/Programming/UnrealArchit ...

Failed to find stub IPA when uproject name is changed from default

UE - Platform - Mobile - Nov 1, 2018

Failed to find stub IPA when packaging for iOS. This also happens with File > Package > iOS.IPP ERROR: Failed to find stub IPA 'D:\FaceARSample421\Binaries\IOS\FaceARSample421.stub' Regression: Yes ...

Post Process Material + Stereo Rendering = Left Eye Black

UE - Platform - XR - Dec 16, 2019

Left Eye Renders black in VR when a PostProcess Material is applied. On Quest Right eye renders post process mat and left eye renders scene, but upsidedown. Also occurs in Packaged Project and/or ...

Unable to Import Alembic Files in UE4

UE - Editor - Content Pipeline - Import and Export - Feb 25, 2020

We have written a plugin for UE4 that allows Unreal users to import and set up Megascans assets into Unreal Engine. Recently we added Alembic files to our assets and also updated all our plugins to ...