Project Crashes on Open when Implementing An Interface and Its Duplicate

UE - Gameplay - Blueprint - Apr 25, 2016

The linked project crashes on open after attempting to implement an interface and a duplicate of that same interface with different function names. This has not been reproduced in a clean project, h ...

WPO is incorrectly generated on materials using Material Attributes as input to Landscape Layer Blend node

UE - Rendering Architecture - Materials - Jan 31, 2024

This comes from this UDN : [Link Removed] It occurs with this setup :  [Image Removed] , where Set Material Attributes expressions act as inputs to the Landscape Layer Blend material expression. ...

Distance Fields no longer work with instances when PIE/Simulate

UE - Graphics Features - Apr 20, 2015

When using distance fields with instance meshes from the foliage tool everything works correctly, however, when simulating or PIE the distance fields will be removed. This working correctly in 4.7.5 ...

World Composition Browser sublevels register as edited/needs to be saved when levels browser is closed and reopened

UE - LD & Modeling - Terrain - Landscape - Mar 13, 2015

Sublevels appear dirty when the level browser is closed and re-opened. ...

Altering Player Controller in Gamemode resets upon reloading project

UE - Gameplay - Blueprint - Nov 26, 2014

If a user sets the player controller to a custom Player Controller inside of a gamemode, then compiles, saves, and closes both the blueprint and the editor. Upon reloading the player controller in t ...

Skeletal mesh always registers as Dynamic when testing collision

UE - Gameplay - Oct 26, 2016

Skeletal meshes do not respect collision changes from World Dynamic, always returns as Dynamic. Regression (no) issue (does) occur in 4.12.5 ...

Engine crashes when adding 'Tick' to HideCategories in a BP or C++ project

UE - Gameplay - Blueprint - Mar 6, 2015

When adding the word 'Tick' to HideCategories in a blueprint or C++ project, the Editor crashes, with a crash reporter. ...

4.23 UpdateGrass took twice time than 4.22

UE - World Creation - Worldbuilding Tools - Foliage - Sep 12, 2019

called custom functions do not update parameter names upon compile, must be replaced

UE - Gameplay - Blueprint - Apr 21, 2015

Parameter names do not update on custom functions that are already called in event graph after compiling blueprint. ...

Destroy Component inside of a actor blueprint component does not trigger if target is "self"

UE - Gameplay - Blueprint - Mar 18, 2015

If a "Destroy Component" has a target of self within a blueprint component, the "Destroy Component" node will not trigger. ...