Some reset to default buttons not appearing for UMG Appearance

UE - Editor - UI Systems - Aug 19, 2016

Some reset to default buttons not appearing for UMG Appearance. This seems to only affect the Categories like Brush, Style or categories under Style like Normal/Hovered. Individual properties rese ...

Connection is broken between Custom event and Collapsed Graph, which is promoted to Macro

UE - Gameplay - Blueprint - Oct 8, 2020

When user promotes collapsed graph that has connection to custom event to macro, connection between that custom event and new macro is brokenThis is not the case when directly collapsing selected no ...

Print String on Event Tick not working as expected with Cinematic Camera Actor in Blueprint

UE - Anim - Sequencer - Sep 29, 2016

Print String does not persist when called on Event Tick within a Cinematic Camera Actor Blueprint. This could be problematic if users have a cinematic camera in their blueprints and using Event Tic ...

AI MoveTo Blueprint node will zero velocity on Pawn when called, causing a freeze if the Pawn is already moving

UE - AI - Oct 4, 2016

AI MoveTo Blueprint node will zero velocity, causing a stop when a new destination is set if the Pawn is currently moving. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.1 (CL 3142249) F ...

Vertex Painting changes collision complexity if the asset is saved while vertex painting

Tools - May 12, 2016

Vertex Painting changes collision complexity if the asset is saved while vertex painting. The collision change is set to "Use Complex Collision as Simple". If this is intended functionality there sh ...

Memory stomp in UTexture2DArray::SetPlatformData

UE - Texture - May 30, 2024

A crash from bad memory access can happen when clearing the textures in a Texture2DArray asset. This appears to be because the order of operations when deleting the platform data is: ``` if (Privat ...

r.AllowStaticLighting=False causes Rendering Issues

UE - Graphics Features - Sep 22, 2015

When setting a project to only use dynamic lighting with the console variable r.AllowStaticLighting=false, the rendering of a Skeletal Mesh in Persona is corrupted. r.AllowStaticLighting=False: in ...

[Mac][Metal] (Shadow) Rendering artifacts with 4.11 on Mac.

UE - Platform - Apple - Apr 12, 2016

The first problem noted in this Answerhub post: First one is that static shadows from stationary directional light are completely broken. Screenspace buffer that should contain static shadows is ju ...

CoreSymbolication.framework fails to load on macOS 11 Big Sur

UE - Platform - Apple - Aug 20, 2020

CoreSymbolication.framework has moved, likely into the system library cache. The function, FApplePlatformSymbolication::EnableCoreSymbolication probably needs to be updated in order to accommodate.d ...

Ray traced shadow sample settings greater than 1 cause shadow artifacts

UE - Graphics Features - Lumen - Sep 23, 2020

Alternative you can follow these steps to reproduce 1. Create a new project with ray tracing enabled 2. Activate the groom plugins 3. Import a groom asset into the scene 4. Add any light type to the ...