Native gameplay tags in plugins are cleared when reading config files

UE - Gameplay - Aug 14, 2024

When references to Gameplay Tags are loaded, it checks to see if they are already registered. If they are not already registered, it will notice it is invalid and may print a warning depending on th ...

Inline retargeting gives different output pose vs retargeting from mesh

UE - Anim - Rigging - Retargeting - Nov 19, 2025

When we perform a retarget from an input pose rather than another mesh, the transforms within the anim bp have already been conformed to the target mesh by translational retargeting and compatible s ...

Crash Occurs when changing the 'Max Metal Shader Standard To Target' option within iOS Project Settings

UE - Platform - Mobile - Jan 26, 2017

A crash occurs when setting the Max Metal Standard Shader version within the Project Settings for iOS. I tested on both Mac and PC and the crash occurs on both machines. Regression? No, this is not ...

Crash When Attempting to Add Existing Streaming Levels Already Present in the Levels Window

Tools - Aug 10, 2017

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

[CrashReport] UE4Editor-CoreUObject!UStruct::SerializeVersionedTaggedProperties(FStructuredArchiveSlot,unsigned char *,UStruct *,unsigned char *,UObject const *) [Class.cpp:1478]

UE - Gameplay - Blueprint - May 22, 2020

User comment: "Crash at compile array blueprint" Error MessageAssertion failed: Tag.Size == Loaded [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/CoreUObject/Private/UObject/Class.cpp] [L ...

Adding material to tiled landscape via details pane causes editor to crash

UE - LD & Modeling - Terrain - Landscape - Jun 22, 2015

If a material is added to a tiled landscape via the details pane, the editor crashes. Frequency: 3/3 CrashReporter: [Link Removed] ...

OnActive Gameplay Cues not activating properly in standalone

UE - Gameplay - Nov 28, 2016

This was reported from https://udn.unrealengine.com/questions/323255/bugfix-onactive-not-triggering-for-gameplaycues-on.html In some case it looks like OnActive gameplay cues are not working proper ...

Launch On from Windows to Linux fails with missing GLSL_430 shaders

UE - Platform - Linux - Nov 16, 2016

GLSL_430 shaders are not cooked when deploying a project from Windows to Linux using Launch On. LogPlayLevel: PLINK: [2016.11.16-18.36.22:414][ 0]LogMaterial:Error: The global shader cache fi ...

Physics Constraints have unexpected behavior when used on nested static mesh components

UE - Simulation - Physics - Jul 5, 2017

Physics Constraints have unexpected behavior when used on nested static mesh components. Simulating inside of the blueprint has a similar effect to what is expected but when the BP is added to the l ...

Level cannot save when compile setting is changed on blueprint present in level

UE - Gameplay - Blueprint - Aug 21, 2017

When using a project that has a blueprint in a level when the project is created, there is an issue that is occurring when you modify the compile settings and attempt to save the level There is an e ...