AutoCreateRefTerm does not provide a way to specify that a TArray property within a struct should have a default value created for it if none is provided

UE - Gameplay - Feb 9, 2018

The current implementation of AutoCreateRefTerm does not allow for a default value to be automatically created for a TArray contained within a struct that is passed into a function as a parameter. I ...

Crash when trying to launch ShooterGame with -game

UE - Online - Jul 11, 2017

Might be related to the changes in //UE4/Release-4.17 at CL 3527005. I was also able to repro this via PIE-Standalone Game in the editor. When I repro'd this with PIE-Standalone Game the Standalone ...

Regression - Nested scene component subobjects are no longer being registered when the owning scene component is added to an existing Actor instance as an instanced component.

UE - Gameplay - Components - Nov 16, 2016

This is a regression that was introduced with changes made to address issues with native vs. non-native component registration at Blueprint construction time ([Link Removed]). Prior to those change ...

Editing and committing changes to a PackedLevelActor Blueprint results in a crash

UE - World Creation - Worldbuilding Tools - Level Instances - Apr 5, 2022

Repro Ratio: 3/3 Regression was tested in //UE5/Release-5.0-EarlyAccess CL-16682836 since this is a new feature of UE5.  The issue did happen ...

Editor 'Build All Levels' discards Volumetrics Lightmaps in persistent level

UE - Graphics Features - May 14, 2025

Building the level or lightmaps can clear the volumetric lightmap. In 5.5, this requires you to perform a full build, or a lighting only build with a BSP brush in the scene. In 5.6, all level build ...

VR Mode - Landscape Mode - Flatten tool crash

UE - LD & Modeling - Terrain - Landscape - Sep 25, 2019

Crash will occur when attempting to use Flatten tool on landscape while in VR Editor. Confirmed in 4.24 MAIN @ CL 9084132 Confirmed on Vive and Rift ...

[CrashReport] UE4Editor_Core!FText::FText() [text.cpp:194]

Tools - Aug 22, 2017

This is a regular crash occurring in 4.16 and 4.17. The callstack is nearly identical to [Link Removed], which was fixed in 4.15 (different error message though). User DescriptionsImporting Files ...

Mobile Previewer: Safe Zone Invalid Until Window Resize

UE - Platform - Mobile - Jul 12, 2021

When the Mobile Previewer loads, the Safe Zone widget is not working properly at startup, and requires a window resize to update to the correct Safe Zone. ...

If PVRTexToolCLI is not executable, invalid texture data is used and crash results when launching on device

UE - Platform - XR - Jul 5, 2017

Synced the code on Windows and transfered to Mac, the file PVRTexToolCLI lost its executable permission bits... UE4 couldn't run the tool, but carried on processing anyway, processing invalid textur ...

Crash when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles.

OLD - Anim - Jun 15, 2018

the editor Crashes when trying to "Update Mesh Section" on any procedural mesh just after "Clear Mesh Section" and "Create Mesh Section" for different vertices and triangles. Found in 4.19 CL# 4033 ...