Including "meta = (WorldContext = "WorldContextObject")" as a specifier in a Blueprint Function Library results in the function not being available in Object Blueprints if a parameter passed into the function is a UObject named WorldContextObject

UE - Gameplay - Blueprint - May 15, 2015

If a function in a custom code Blueprint Function Library class contains meta = (WorldContext = "WorldContextObject") as a specifier, that function does not appear in context searches in a UObject B ...

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 ...

Fix textureLOD for PowerVR workaround

UE - Platform - Mobile - Mar 9, 2015

https://forums.unrealengine.com/showthread.php?61511-A-few-questions-in-regard-to-texture-compression-reflections-and-deployment&highlight=powervr This code was added back on 8/2013, changelist 178 ...

HLODs do not correctly work with Dynamic Material Instances

UE - World Creation - Worldbuilding Tools - HLOD - Jan 11, 2016

A licensee has reported that when using Create Material Instance Dynamic and adjusting a material at run-time is not working with HLODs. It doesn't seem supported (yet) and unchecking the "merge m ...

Datasmith floods network with UDP traffic in a lab environment

TM - Datasmith Exporter - Aug 28, 2023

They've had some luck disabling UDP transport as mentioned in the following articles:https://docs.unrealengine.com/5.2/en-US/udp-messaging-settings-in-the-unreal-engine-project-settings/https://foru ...

The first time OnConstruction is called after duplication the Actor still has default class values

UE - Gameplay - Blueprint - Dec 18, 2014

A Blueprint derived from a custom Actor class resets its variables to their default values when the Actor is duplicated, even if the actor being duplicated has a different value for that variable. T ...

Investigate deprecating byte-swap during save

UE - Foundation - Core - Sep 26, 2019

All major UE target platforms are little-endian. Saving packages with byte-swapping seems to have been broken for more than six years, when CL# 1495479 changed `FArchive::ByteOrderSerialize()` so th ...

Command r.DebugSafeZone.Mode 0 does not disable overlays

Tools - Feb 19, 2020

Running the console command r.DebugSafeZone.Mode 0 does not disable all overlays.  The issue occurs when setting custom values in DefaultEngine.ini as well.  Tested using the following settings:  ...

"Pass-By-Reference" inputs to a multicast RPC can crash

UE - Networking - Oct 6, 2021

Passing a parameter by reference for an RPC does not seem to be a supported operation, and UnrealHeaderTool will already throw an error if a networked UFUNCTION includes any OutParms. However, users ...

DrawMaterial() Function not Rendering Translucent Material to HUD

UE - Graphics Features - Sep 4, 2015

After creating a new HUD blueprint class and calling it to render a translucent material, the material does not render at all. This is not the case with any other Blend Mode when called to render to ...