Setting a console variable interacts with window state

When the game window is set to be windowed and maximized, setting a console variable changes the window's state from being maximized to its default size.  This is a regression as it is working as e ...

UMG Drag and Drop stops working in a Packaged or Standalone Game

UE - Editor - UI Systems - Aug 20, 2018

Drag and drop operations just become broken on packaged builds or launching stand-alone, despite working inside the Editor (PIE). This is a regression from 4.19.2 (CL-4033788). This issue was repor ...

EQS Context modifications Crashes Editor

UE - Gameplay - Aug 29, 2018

Making changes to the EQS Context and moving the Testing Pawn, the Editor crashes. When reopening the Editor, the context is set and the query does generate from that actor/location. This issue was ...

Logs containing UTF-8 characters don't appear in CMD/Terminal on Linux

UE - Platform - Linux - Sep 5, 2018

If a log message contains UTF-8 characters like "ő" or any Russian one ("л") it won't be printed to cmd or terminal but it will be printed to the log file. This is a regression from 4.19.2 (CL-40337 ...

Blueprint Structure Tooltip Edits Get Discarded

UE - Gameplay - Sep 12, 2018

Blueprint Structure tooltip edits get discarded. Current workaround is to make a secondary change that is not needed along with the desired change, Then edit it again to remove the secondary change. ...

Importing a Landscape Layer with World Composition Enabled is Taking All Available Memory

UE - LD & Modeling - Terrain - Landscape - Sep 18, 2018

When importing layer information to a landscape the engine will freeze and consume all available memory. Unable to test in 4.19 due to provided project being made in 4.20. I have attached a log from ...

"Start Previewing Node" Does Not Work For Post Process Materials

UE - Graphics Features - Oct 1, 2018

Using "start previewing node" in a post process material does not work. The preview will only show the final result that is connected to the material attributes.  Working as expected in 4.18 CL# 38 ...

Blueprint Functions with a Parameter Named "Category" Will Change the Functions Category Back to Default

UE - Gameplay - Nov 19, 2018

When creating a Blueprint Function under a non-default category, if you name one of its parameters "Category" the function will be moved back to the default category. This is working as expected in ...

[Input] Switching levels destroys auto-created Input Component which breaks emitUIInteraction

PixelStreaming - Feb 12, 2019

We auto-create a PixelStreamingInputComponent which handles the input coming from JavaScript's emitUIInteraction. This works in a UE4 app with a single level, but it seems that if you change levels ...

Blueprint nativization fails using a map type argument as Expose on Spawn

UE - Gameplay - Blueprint - Oct 2, 2020

Here's a sample blueprint [Image Removed] The lack of implementation FCustomThunkTemplates::SetMapPropertyByName causes this error.#include "Kismet/BlueprintMapLibrary.h"// The fix needs this head ...