Editor Performance drops when removing frames from animations with curve data

OLD - Anim - May 26, 2016

Editor Performance drops when removing frames from animations with curve keys Regression: No, removing frames on animations with curves had a chance to crash the editor in 4.11, which doesn't happ ...

UDN: Editor ignores platform-suffixed solution file names when checking for a compiler

UE - Foundation - Cpp Tools - UnrealBuildTool - Dec 3, 2015

https://udn.unrealengine.com/questions/270801/cannot-open-modules-panel-its-missing.html MikeF: The "Modules" button will automatically become hidden if the editor thinks that the user is not a pr ...

Sequencer 3D Trajectories run very slow on deep hierarchies

UE - Anim - Sequencer - Aug 27, 2018

Using a Level Sequence with deep hierarchies causes the FPS to drop to low numbers when they are all selected within the Sequence. This is a regression from 4.19.2 (CL-4033788). This issue was repo ...

Incorrect Skysphere Material Reflection with Ray Tracing

UE - Graphics Features - Lumen - Mar 5, 2019

The reflected Sky material looks blurry and low res when set to unlit, however setting the material to Default Lit has the correct reflection. Even though the reflection is correct the lighting brea ...

Race condition in the late update manager

UE - Platform - XR - Jan 7, 2019

https://udn.unrealengine.com/questions/476212/race-condition-in-lateupdatemanager.html In short, the trick storing a pointer to the packed index of the primitive does not work as it is simply a p ...

Disable "Deferred Rendering" option in Movie Render Queue doesn't work

UE - Anim - Sequencer - May 4, 2020

Disable "Deferred Rendering" option in Movie Render Queue doesn't work and still renders the deferred pass. Currently you have to delete the Deferred Render config option completely to get the expec ...

Reimporting SkeletalMesh with LODs generated via reduction tool crashes when reduction plugin is disabled

UE - Editor - Content Pipeline - Import and Export - Mar 12, 2021

When reimporting a Skeletal Mesh that has LODs generated via the reduction tool, the editor will crash if the Skeletal Mesh Simplifier plugin is disabled. This issue was originally reported on th ...

Nanite custom depth rendering is missing support for r.CustomDepthTemporalAAJitter=0

UE - Rendering - Features - Nanite - Dec 14, 2023

Nanite custom depth rendering doesn't "de-jitter" the view parameters for custom depth rendering when r.CustomDepthTemporalAAJitter is set to 0. This was discovered by a licensee and reported via U ...

Meta Specifier BlueprintBaseOnly does not seem to work as intended

UE - Gameplay - Mar 19, 2024

Based on this case here:https://udn.unrealengine.com/s/case/500QP000006rnSEYAY/tsubclassof-with-metablueprintbaseonly-doesnt-appear-to-work From my testing the user seems to be correct. Applying th ...

[Interchange] Adding fbx file to monitored folder triggered legacy import

UE - Editor - Open File Formats - Import and Export - Jun 12, 2024

The import dialog window is the legacy one and not the Interchange one. Auto reimport of modified FBX seems to be working properly with legacy or interchange selected depending on the CVar Rep ...