Unreal Engine Issues

Texture Sample 2D Parameter not Working with WPO on Mobile Quality ES3.1

WPO does not accept TextureParameter2D nodes when deployed to High End Mobile. The interesting thing is that all other inputs accept Param2D, so it is not entirely clear why WPO is not working. If ...

Crash in GetScreenRect on OPPO and Vivo devices

Casting to ActorComponentOwner inside of nested Inline instanciated Blueprints owned by ActorComponentOwner disappear after Editor restart.

A set of objects which can be instantiated Inline in the Editor that contain an array of References to their children that have nested Blueprint objects inheriting from a Native Base Class can cause ...

Colors of Individual Lens Flare Tints Cannot be Changed in UE 4.18+

If you create a project in 4.17 and follow the Repro steps, you will be able to adjust the colors of individual lens flares. If you copy the 4.17 project into 4.18, 4.19, 4.20 Preview, or 4.21 the f ...

Find Session and Join Session to join a session over LAN on iOS is inconsistent and requires being run multiple times to work

Attempting to use Find Session / Join Session to join a LAN session on iOS results in inconsistent results, requiring the client to press the join button multiple times to join properly. Currently ...

Gameplay Tag Query Variables Don't Retain Custom Default Values in Custom Structs

Gameplay Tag Query variables in custom structs created via the content browser do not retain custom default values. Found in 4.23.1 CL# 9631420 Reproduced in 4.24 Preview 4 CL3# 10387632, 4.25 Main ...

All Vive Trackpad Inputs Send The Same Input

The vive trackpad inputs all read as the same input. Found in 4.24.1 Reproduced in 4.25 Main ...

Widget With Spinbox Crashes When Destrcutor Is Called With Multithreaded Destruction Enabled

When a widget with a spinbox is calls it's Destructor with "Multithreaded Destruction" enabled the engine crashes. I have tested in 4.23.1, 4.24.3, and 4.26 Main with "Multithreaded Destruction" dis ...

UDelegateProperty define missing in DefineUPropertyMacros.h

The following code should be added in defineUPropertyMacros.h #ifndef UDelegateProperty #define UDelegateProperty DEPRECATED_MACRO(4.25, "UDelegateProperty has been renamed to FDelegateProperty") F ...

Sequencer unable to bind channel of a value that is part of a TArray

Keyframes added to sequencer from a TArray variable are unable to be changed. The value sets correctly but displays red. [Link Removed] ...