BinnedMalloc and BinnedMalloc2 performance on Linux is not good

UE - Foundation - Core - Jun 8, 2017

This test took 13 seconds using Binned2 and 10 seconds using Binned1. It took 0.06 seconds using jemalloc ...

Planar reflections do not work in OpenGL4

UE - Rendering Architecture - RHI - Jul 11, 2017

This is not a regression as it occurs in 4.16.2 The test case was just recently updated to test for planar reflections so not sure if this is intended to work or not. ...

Calling SetNavigationRule for widgets at runtime does not update the Nav Rule

UE - Editor - UI Systems - Sep 25, 2017

Calling SetNavigationRule at runtime does not update the widget navigation of the selected widget. Regression: No - same behavior occurs in 4.16.3 (CL 3561208) ...

Data Tables can no longer import numeric enum values

Tools - Nov 1, 2017

Some changes to UEnumProperty::ImportText_Internal prevent this importing the stringified number (which is a float) as an enum value. This affects the JSON importer, and maybe the CSV one too. ...

Typo in Tick Interval tooltip inside task blueprints

UE - AI - May 28, 2020

The BTTask_BlueprintBase class has a type in the tooltip for Tick Interval: " /** If any of the Tick functions is implemented, how ofter should they be ticked.Values < 0 mean 'every tick'. */" ...

Deterministic cooking issue caused by ParticleModuleTypeDataGPU

UE - Niagara - Jan 18, 2021

This problem is similar to the following case. [Link Removed] [Link Removed] It seems to have been fixed in 4.16, but the licensee reported it in 4.25. ...

Example 1.3: Constraint Profiles animation not working in ContentExamples

UE - Content - Content Example - Mar 25, 2022

This bug does not occur in //UE5/Release-5.0-EarlyAccess or in Release-4.27 making it a regression.  This also occurs in //UE5/Main  ...

Unable to write custom stencil using Draw Material To Render Target

UE - Rendering Architecture - Materials - May 20, 2022

The attached project was created in 4.27 and is rendered on render target when checked in 4.27. However, this does not reproduce in 5.0 or later. ...

Build failed executing script TagsAndFiles.xml.

UE - Foundation - Horde - BuildGraph - May 24, 2022

"Trigger" element has been removed from the BuildGraph, causing an error when running TagsAndFiles.xml. This problem was added in 5.0 and does not occur in UE4.X. ...

Double-clicking metasound graph input widget resets value to 1, but displayed value does not change

UE - Audio - MetaSounds - Nov 16, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. ...