[CrashReport] UArrayProperty::DestroyValueInternal

UE - Gameplay - Blueprint - Sep 14, 2017

This is a somewhat common crash that has affected multiple users in 4.17. User Descriptionstried to compile a blueprint after changing blueprint interface function definitions. Source Code 121 ...

Geometry Pen Tool Duplicates Bushes On Grid Size 1 & 5

UE - LD & Modeling - Modeling Tools - BSP - Mar 7, 2018

There is an issue occurring when creating brushes with the pen tool at grid size 5 where verticles or the brush shape itself seems to be doubled. This issue also occurs if the grid size is 1, though ...

Renaming native struct with redirect can break user defined structs

UE - Gameplay - Blueprint - Jul 18, 2018

From https://udn.unrealengine.com/questions/444690/redirecting-ustruct-used-as-member-of-userdefineds.html In 4.20 it was changed so soft object ptrs pointing to classes work correclty with +ClassR ...

Overriding a UFUNCTION in a Blueprint results in an empty "Event Graph" category being shown in a Data Asset containing an instance of the Blueprint

Tools - Nov 12, 2018

When looking at the details of a UObject contained in a Data Asset, some categories are shown even though they should not be. If a category is marked as hidden in the parent class, it will be shown ...

Hidden and empty categories of a UObject are shown in a Data Asset's details panel

Tools - Nov 12, 2018

When looking at the details of a UObject contained in a Data Asset, some categories are shown even though they should not be. If a category is marked as hidden in the parent class, it will be shown ...

Integer Blueprint variables reset the Bitmask Enum setting when the Editor closes

UE - Framework - Blueprint - Feb 28, 2019

User created Bitmask flag Enumerators are not correctly stored and retrieved from Blueprint Integer variable settings. When the Editor is restarted the value of the Integer's Bitmask Enum is set to ...

Mouse Events cannot be treated as Touch on Android Apps on Chromebook

UE - Platform - Mobile - Mar 18, 2019

A licensee reported an issue where mouse events are not able to be used as touch events on Android apps. This was specifically reported on and tested on Chromebooks. After working with Chris Babcock ...

Incorrect number of parameters in empty Shipping version of the DrawDebugString() function signature

UE - Foundation - Core - Mar 26, 2019

The DrawDebugString() function has to versions. One is the actual function to display a string of debug text in non-Shipping builds, and the other is an empty function that is used in Shipping build ...

[AI] ZoneShapes visualization does not reset after selecting another actor

UE - AI - Jul 26, 2023

ZoneShapes do not reset visuals when being de-selected and re-selected. The last piece of the zone shape to be selected will still show as selected when the shape is re-selected, but using the edito ...

Translucent materials with Modulate blend mode disappear with down-res translucency enabled

UE - Graphics Features - May 28, 2024

Reported from this UDN: https://udn.unrealengine.com/s/question/0D5QP00000MLlco0AD/active-dtr-doesnt-render-beforedofmodulated-materials?fromCase=1 The problem is that, except in very specific circ ...