Deleting a Struct Attached to a Variable in a Blueprint Prevents it from Compiling

UE - Gameplay - Blueprint - Oct 20, 2015

Adding a variable of the type of a struct to a blueprint, deleting that struct, and then recompiling the blueprint fails. The variable is deleted, but the blueprint will continue to be unable to com ...

Destructible created in PhysXlabs will clear materials when a chunk parameter is selected

UE - Simulation - Physics - Destruction - Dec 30, 2014

DESCRIPTION: The materials are cleared from a destructible that is created in PhysX Labs when a chunk in any of the depths is selected and if any of the chunk parameters are set to true. ATTACHED: ...

A 5.5 level that contains a Text3DComponent in a BP crashes the engine when opened in 5.6 (and up)

zComponent - Archive - Sep 11, 2025

A 5.5 level that contains a Text3DComponent in a BP crashes the engine when opened in 5.6 (and up). The licensee has provided his analysis: Description: Level instance created in UE5.5 and re-saved ...

The packaged build of a project that has a strong pointer initialized to nullptr immediately closes on launch

UE - Foundation - Core - Aug 2, 2019

When a strong pointer is set to null the packaged build of the game will immediately close. No crash logs were were made and no Saved folder was made (<Project Name>/Saved/Logs). An example project ...

LIVE: Manually importing a single LOD created in Maya will rotate -90 degrees

UE - Editor - Content Pipeline - Import and Export - Nov 5, 2014

DESCRIPTION: When importing a mesh created with Maya then saving, closing, and reopening the editor, if you add a LOD via the right mouse menu or mesh editor will result in the LOD importing -90 rot ...

Object Scale Not Working with Instanced Static Mesh

UE - Graphics Features - May 19, 2016

Using Object Scale in your material with an Instanced Static Mesh does not change the color of the material if you scale the individual instances of the Instanced Static Mesh component. If you scal ...

Fog Does Not Behave As Expected in Splitscreen

UE - Graphics Features - May 25, 2018

This bug seems to repro very inconsistently for me, but I've seen it affect Atmospheric Fog and Exponential Height Fog, and reproduced in 4.18.3, 4.19.2, and Main CL 4093338. I've attached Config fi ...

The Get node for the float value of Custom Axis Mappings only return 0.0 when called from Blueprints other than the Controller

UE - Gameplay - Input - Dec 3, 2014

The Get node for the float value of Custom Axis Mappings only returns 0.0 when called from Blueprints other than the Controller. Input from the player does not affect the value. Note: this works a ...

Anisotropy not working correctly when used in Material Layers

UE - Rendering - Architecture - Materials - Jan 17, 2024

1. When a Material Layer is applied and there is no node connected to Anisotropy in the master material(M_Test_1), the material does not function correctly after packaging, although it works properl ...

Other components aren't ignored if 'Ignore Owning Actor' is enabled for a Radial Force component

UE - Gameplay - Jun 17, 2015

Other components aren't ignored if 'Ignore Owning Actor' is enabled for a Radial Force component User Description: From 4.7 release notes; "New: Added 'Ignore Owning Actor' option to Radial Force ...