SSR not rendering correctly in SM4 Preview

UE - Graphics Features - Sep 20, 2017

This is a regression from 4.17.2 and you do not need to be in PIE to see the effect. This is not seen in Shader Model 5 ...

Particle memory can be corrupted leading to a crash

UE - Foundation - Core - Jan 7, 2019

New 'UncookedOnly' modules can incorrectly be included as a build dependency after nativization of a Blueprint asset

UE - Gameplay - Blueprint - Dec 20, 2019

The new 'UncookedOnly' module type that was added in 4.24 is not visible to Blueprint nativization, and thus it does not know to exclude these module types from the generated Build.cs file when they ...

Copy/Pasting static meshes from the level into a blueprint doesn't work

UE - Editor - Workflow Systems - Apr 29, 2021

It's likely that this bug has been around for quite a while. The user reports that the issue could possibly be in FCustomizableTextObjectFactory::ProcessBuffer, but this seems more like it could be ...

Combo triggers do not fire the "Completed" event

UE - Gameplay - Input - May 25, 2023

Improper Initialization of trigger values when added at runtime with the key pressed already

UE - Gameplay - Input - Nov 11, 2022

See the comment on UInputTrigger::LastValue around issues being a bool type on first tick ...

ParticlePosition doesn't use Previous values

UE - Niagara - Jan 9, 2024

FHLSLMaterialTranslator::ParticlePosition does not return Previous information when request which can result in bad motion vector calculation. ...