GPU Particle Emitter noticable stutter with steady stream

UE - Graphics Features - Apr 1, 2016

When using a GPU particle and setting a steady stream there is an obvious stutter compared to 4.10.4 where everything worked smoothly. Regression: YES This issue did not occur in 4.10.4 CL-2872498 ...

Logging out and then logging in as a new user results in slate creating multiple Slate User IDs

UE - Gameplay - Input - Jul 28, 2023

I believe this is happening because when you change your logged in user, the Slate Application will automatically create a new second slate user with an ID of 2. This is bad because the Slate App is ...

Crash when a nested widget is set to "Force Slow Construction Path"

UE - Editor - UI Systems - May 25, 2018

Does not occur if the root widget also disables the fast path. As a result, the current workaround is to ensure that the fast construction path is also disabled on the parent widget by making sure ...

Packaging Error When Setting Recast Nav Mesh Runtime Generation

UE - AI - Jan 25, 2016

Setting the Runtime Generation on the Recast Nav Mesh to a different preset than what is set in the Project Settings causes an error to appear upon trying to package the project, and causes the pack ...

GTAO console command minor issues

UE - Graphics Features - Oct 18, 2024

The following ambient occlusion console commands have issues: r.AmbientOcclusion.Compute ? The help text state it only works console but it also works on PC and likely other platforms. r.GTAO.Use ...

Crash on stopping PIE after using DemoRec in PIE

UE - Networking - Jan 20, 2016

Crash on stopping PIE after using DemoRec in PIE. Possibly related to [Link Removed] which must be fixed, but happens upon stopping PIE. Reproduced in 4.11.0 Preview 3 binary and Main (//UE4/Dev-Ma ...

Paint Mode button options disappear when toggling on "Use Small Tool Bar Icons" in the User Interface

Tools - Nov 30, 2017

When toggling on the "Use Small Tool Bar Icons" under the User Interface settings, the button options that sit directly under the Colors, Weights, and Textures options in Paint mode disappear. Thi ...

Physics objects will bounce unrealistically just before coming to rest

OLD - Anim - Jun 5, 2017

Physics objects will bounce unrealistically just before coming to rest. This is most noticeable with the large cube in the 1st Person template project. It also happens with the smaller cubes but not ...

Cannot touch at top of screen after input japanese on UEditableTextBox on IOS

UE - Platform - Mobile - Apr 5, 2022

[translated comment from licensee] This issue can be found in a IOS project using the Integrated Keyboard. it occurs when using a Japanese keyboard on EditableTextBox. There is no problem with Engl ...

The selection operation with notify track in Persona is not compatible with custom window display scaling

UE - Anim - Runtime - Jun 4, 2025

It appears that notify track does not follow the size of the custom window scale. As a result, display problems may occur, and events may be placed in unexpected positions. This is similar to [Link ...