Timeline name changes do not propagate to related nodes

UE - Gameplay - Blueprint - Mar 17, 2015

Timeline name changes do not propagate to related nodes. Refresh All does not rename nodes that reference the timeline, and Getters and Setters are no longer valid nodes. Reproduced in 4.7.2 binary ...

HLSLCC crashed on parsing UAV related instruction

UE - Graphics Features - Oct 10, 2019

1.glsl_type with image was not fully inited with HlslName field set, causing the crash 2.seems many types of op are not support by current hlslcc, cause error msg. e.g. RWTexture2D.Load[Image Remo ...

AI Perception Peripheral Vision Angle Degrees Being Doubled

UE - AI - Jun 7, 2016

Any value that is set for Peripheral Vision Angle Degrees in an AI Perception component's Sight config is doubled. This does not occur with the PawnSensing component, which is inconsistent behavio ...

Settings related to Supported Agents are not saved in the DefaultEngine.ini

Tools - Aug 25, 2015

All entries in the Project Settings window are suppose to be saved in the DefaultEngine.ini file. This does not occur for settings related to Support Agents such as Can Walk, Can Crouch, etc. Note: ...

Linux: UI scale is sometimes not 1.0 on non-high-DPI monitors

UE - Platform - Linux - Nov 7, 2017

At the moment, UI scale is calculated on Linux from physical monitor dimensions (obtained ultimately from EDID) and not system scale. The granularity is 0.25, so scale can be 0.25, 0.5, 0.75, 1, 1.2 ...

Moving Landscape causes Crash with Landscape Grass Output in Landscape Material

UE - LD & Modeling - Terrain - Landscape - Jun 16, 2016

Editor crashes when utilizing the Landscape Grass Output node within a Material, and then attempting to move the landscape with the material applied. I narrowed this down to being directly related ...

Set Component Tick doesn't work on Cascade Particle Systems

UE - Niagara - Jul 31, 2019

Changing the Component Tick Interval via Blueprints has no effect on Cascade particle system components. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 P3 (CL - 7445012), 4.24 (CL - ...

Array inputs in Custom Events cause a compiler "note"

UE - Gameplay - Blueprint - Sep 1, 2015

Array inputs in Custom Events cause a compiler "note". On compile, "NOTE" is added to the node, and this appears in the Compiler Results: "Info No value will be returned by reference. Parameter 'Lis ...

Opening Materials and Material Functions with Vertex Interpolator node Results in Crash

UE - Graphics Features - May 23, 2018

Per Licensee: Hello, We are migrating our project from 4.18 to 4.19.2 and we are encountering various crashes while opening our material and material functions. I'm adding a simple test case here. ...

Procedural Foliage Blocking Volume Blocks Sight Perception

UE - AI - May 25, 2016

Sight perception is being blocked by Procedural Foliage Blocking Volumes. Setting the volume to No Collision resolves the issue, but then the volume will not block foliage. Found in 4.12 Preview 5 ...