[Feature Request] Niagara Ribbon Render needs V direction Tessellation option

UE - Rendering - Architecture - Niagara - Aug 8, 2021

It has a common chunking visual artifacts that lot's of triangular Translucent overlap once Ribbon's width is big and twisted heavily facing to Camera [Image Removed] It can be fixed by adding mor ...

SteamSockets not setup to handle Client/Session ID handshakes

UE - Online - Jan 13, 2023

Repro Rate: 3/3 This is a live issue where the customer claims that the SteamSockets implementaton is not setup to handle the new Client and Session Id setup that was introduced in 5.1. This issue ...

Renaming a SkinnedMeshComponent onto a different owning actor will cause issues with FAnimUpdateRateManager

UE - Runtime - Animation - Aug 12, 2021

As mentioned in the UDN - the user tried to rename an SMC to a different actor, which leaves the URO manager left with an incorrect data as it is not aware of the move. User proposed overriding Post ...

Startup movies using FDefaultGameMoviePlayer are not skippable using keyboard or gamepad

Media Framework - Oct 13, 2016

There are a few separate issues with user input plumbing that prevent keypresses from getting to FDefaultGameMoviePlayer during a startup video 1) In FDefaultGameMoviePlayer::WaitForMovieToFinish() ...

Import options broken when importing bones-only fbx animation

OLD - Anim - Jun 19, 2015

This bug is being entered for integration purposes. This is already fixed in 4.9 Main with one of Lina's changes (CL:2584657). Wanted to try and get this into a 4.8 hotfix ...

Crash when using a bitmap in a material.

TM - Core - Mar 3, 2025

see repro steps: direct crash the material comes from FAB model:  [Link Removed] ...

Ensure when opening Camera Anim assets for the second time

Tools - Aug 21, 2016

An occasional ensure is thrown when opening Camera Anim assets. Generally, the issue occurs when opening the asset for a second time, but the repro rate is low, around 1/5. ...

Assets Jitter When Selected In Editor

Tools - Mar 4, 2020

When you are selecting an asset in the editor it jitters a little bit until unselected. Found in 4.25.0 Preview 1 CL#11723679 Reproduced in 4.26.0 Main CL#11724764 ...

[CrashReport] UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReplaceInstancesOfClass_Inner() [kismetreinstanceutilities.cpp:1880]

UE - Gameplay - Blueprint Compiler - Oct 5, 2017

This is a somewhat common crash that has occurred throughout the 4.17 release. Users have not provided any description of their actions when the crash occurred. The callstack is similar to some ol ...

Empty Mesh Sections with MergeActors Tool

UE - World Creation - Worldbuilding Tools - HLOD - Sep 27, 2019

Map Check will output the following error, which makes no sense: SM_FourCubes_1 - 1 element(s) with zero triangles in static mesh 'SM_FourCubes' ...