SAnalogSlider moves slowly when step size is large

UE - Editor - UI Systems - Slate - Mar 6, 2024

SAnalogSlider calculates FastestStepTime by multiplying the step size value by a constant, resulting in high numbers for larger step sizes. This gets lerped from 1 and used as the repeat time, resul ...

Attaching New Camera Actor to Spring Arm Component does not set the Location Correctly

UE - Gameplay - Blueprint - Apr 2, 2015

After adding a new Camera Actor Component within Blueprints to an existing Spring Arm Component, the Camera Component adopts the location settings , but does not set its location within the viewport ...

Uncompressed Lightmaps rendering incorrectly in HTML5

UE - Platform - Mobile - Mar 25, 2015

When using uncompressed Lightmaps in HTML5, the lighting is rendered incorrectly. Using (the default) compressed lightmaps, generates no error. Also reproduced in Main Promotable-CL-2487422 (Enscr ...

Multiple overlapping reflection captures cause graphical artifact on Mac

UE - Graphics Features - Dec 16, 2016

There are tiled artifacts that appear on Mac Sierra when reflection captures overlap. Tested with Asset #3595 MacOS Sierra Version: 10.12.1 NVIDIA GeForce GT 750M Driver: 367.15.10.05f01 ...

Can't set Event replication settings when delegate output pin is connected

UE - Gameplay - Blueprint Editor - Feb 19, 2018

User Reported Bug Replication Settings no longer editable after event delegate is connected. Doesn't seem to affect functionality, only UI. (replication settings stay as set before plugging delega ...

Axis changes when performing FBX import / export with "Force Front X Axis" enabled

UE - Editor - Content Pipeline - Import and Export - Jan 6, 2020

1. Import the attached test.FBX with "Force Front X Axis" enabled. 2. Export the imported skeletal mesh with "Force Front X Axis" enabled. (Test_export.FBX) 3. The axis does not match in test.FBX an ...

SceneCaptureComponent2D leaks a ton of memory in a Packaged Build

UE - Virtual Production - Mar 12, 2020

This was initially reported in VR but the leak happens in a non-VR setup and environment. GPU utilization jumps to 84% in 4.23.1 and 98%+ in 4.24.3, 4.25, and 4.26. Tested GPUs were GTX 980 and GTX ...

Clicking the Yellow Reset to Defaults Button on an exposed Value for struct Arrays always defaults to '0'

UE - Gameplay - Blueprint - Jan 8, 2015

When using the track builder plugin, the default settings for the track width starts at 1. However, when the yellow arrow is clicked to to restore the track back to default it sets it to zero instea ...

Scratch Pad outputting Audio Spectrum triggers a crash

UE - Niagara - Jun 14, 2023

This is a regression. Tested in //UE5/Release-5.1 CL23901901 The editor crashes after playing in editor when the level contains a niagara system with a scratch pad outputing audio spectrum. ...

Swarm Agent Local Host of Coordinator not showing up in Coordinator

UE - Foundation - Core - May 26, 2015

A Computer which is hosting the Swarm Coordinator no longer shows up as a viable Swarm Agent Computer and if that computer builds lighting will only use itself and not any available agents. Also re ...