Preview Rendering Levels are not saved when Opening Level/Project

UE - Graphics Features - Jan 27, 2017

When switching the preview rendering level to any of the mobile shader models and opening a new level, the preview rendering level does not get reapplied to that particular level. This is contrary t ...

Vertex animation not animating on Switch

UE - Graphics Features - Nov 19, 2018

Licensee has reported their crowd animations are not working correctly. Nothing immediately obvious when I tested the project and thought it would be better to get it raised as a JIRA bug ASAP. ...

Blueprint node detail checkboxes are not transfered during copy/paste

UE - Gameplay - Blueprint - Sep 24, 2015

When editing settings in a blueprint node's details and copying the values of a setting / pasting to the same value of a different node, the value will update after pasting but the checkbox setting ...

Sequencer Actor Transforms are not offset when the level is moved in World Composition

UE - Anim - Sequencer - Nov 10, 2016

Sequencer Actor Transforms are not offset when the level is moved in World Composition ...

SVN SASL binaries may be causing crashes for some users

Tools - Feb 21, 2017

Some users are reporting crashes when attempting to connect to SVN after upgrading to 4.15. The only relevant change to SVN was the update of the 1.9 binaries to support SASL, so it's possible that ...

Inconsistent rendering between left and right eye when r.SeparateTranslucencyScreenPercentage is less than 100

UE - Platform - XR - Feb 21, 2017

Rendering appears to be inconsistent between the left and right eye of the oculus when setting r.SeparateTranslucencyScreenPercentage to a number below 100 (99 in this example) ...

Packaging a DLC Plugin Fails with "Couldn't Update Resources" Error

UE - Foundation - Core - Cooker - Mar 14, 2017

Attempting to package a plugin as DLC is failing with the following error message: Program.Main: ERROR: AutomationTool terminated with exception: System.Exception: Couldn't update resource However ...

There's no efficient way to pause/resume widget animations

UE - Anim - Sequencer - Jul 27, 2017

The implementation of UMGSequencePlayer::Play and UMGSequencePlayer::Pause are not conducive to being able to efficiently pause and resume animations. Some problems that need to be addressed: 1. ...

Getting Emitter.NumParticles on Niagara's GPU compute sim returns 0

UE - Niagara - Jul 27, 2023

This problem looks like the following parameters are not defined correctly. The correct parameter is Engine_Emitter_NumParticles. Engine_Emitter_NumParticles and PREV_Engine_Emitter_NumParticles .\ ...

Convert selected components to Blueprint Class will crash if the Actor is not tagged as BlueprintSpawnableComponent

UE - Gameplay - Components - Sep 2, 2016

The editor will crash when using "Convert Selected Components to Blueprint Class" for actors that the root component is not tagged as a BlueprintSpawnableComponent. ...