Crash when locate_bound_objects is called

UE - Anim - Sequencer - May 14, 2024

This has been tested internally using an editor utility widget yielding the same results. That small project is attached. BoundingObjectTest. 1) Open the project 2) Run the Editor Utility Widget ...

Incorrect resolution used because SetProcessDpiAware() is not called when bAllowHighDPIInGameMode=False

UE - Rendering Architecture - Aug 8, 2025

The incorrect resolution is used on computers with 4k monitors that use DPI scaling (default 150%) because the default for UE projects is bAllowHighDPIInGameMode=False which results in SetProcessDp ...

Changing Material for Landscapes with Visibility tool causes Crashes

UE - LD & Modeling - Terrain - Landscape - Sep 3, 2015

After a user creates a hole using the visibility tool on a landscape UE4 crashes. ...

Crash when rendering movie with "Capture frames in HDR" enabled

UE - Anim - Sequencer - May 18, 2016

Crash when rendering movie with "Capture frames in HDR" enabled Will add more info when crashreporter shows up. ...

Destructible components will not respond to OnHit events when impact damage is disabled

UE - Simulation - Physics - Destruction - Aug 31, 2016

Destructibles without impact damage will not trigger onhit events, regardless of their "Simulation Generates Hit Events" flag status, this is because we ignore that flag in CreatePhysicsState and on ...

Hot reload iteration time regression.

UE - Foundation - Core - Oct 19, 2017

Hot reload iteration times have been crippled ever since CL# 3332960, which was a fix for [Link Removed]. ...

User created OSS plugins require modifying Engine now

UE - Online - Aug 24, 2018

This was discovered in live build and posted in UE Forums that based on changes to OSS, users (binary specifically) can no longer create their own OSS plugins as it requires modifying the Engine Sou ...

Foliage meshes doesn't follow the geometry planted on

UE - World Creation - Worldbuilding Tools - Foliage - Dec 6, 2018

Sorting objects at EndLoad has a non-deterministic behavior

UE - Foundation - Core - EditorLoader - May 14, 2021

This non-deterministic behavior is caused by sorting by program address. ...

Engine Source is no longer part of xcodeproj

UE - Platform - Apple - Jun 15, 2015

Reported by a user on AnswerHub, but when creating a code project with Binary Install, the Engine source is no longer included/visible in the .xcodeproj. This does not occur on Windows with VS ...