Update Instance Transform Rotation for HISM isn't working in a packaged game

UE - World Creation - Worldbuilding Tools - Foliage - Aug 22, 2018

Using 'Update Instance Transform' to rotate HISM instances will work in PIE, but won't work in a packaged game. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in ...

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 ...

Wireframe Appears Aliased and Draws Behind the Editor Grid

UE - Graphics Features - Jan 10, 2019

When the Editor grid is enabled, it draws over the wireframe objects. This is especially clear in orthographic views where the grid completely obscures wireframe lines aligned to the grid placement. ...

Assertion When Packaging If an Actor in Level Uses Create Canvas 2D Render Target

UE - Graphics Features - Jan 23, 2019

An assertion will occur when packaging if an Actor in level uses "Create Canvas 2D Render Target"  Found in 4.20 CL# 4369336, 4.21 CL 4753647 Blocked for testing in main due to crash when placing ...

Niagara Mesh Renderer Incorrectly Rendering Mesh at Distances When Using Two Sided Material

UE - Niagara - Mar 25, 2019

Niagara Mesh Renderer Incorrectly Rendering Mesh at Distances When Using Two Sided Material.  Working as expected in 4.20 CL# 4369336 and 4.21 CL# 4753647 Found in 4.22 Preview 6 CL# 5439949 and 4 ...

Windowed fullscreen doesn't respect vsync settings

UE - Rendering Architecture - RHI - Oct 31, 2019

When running in windowed fullscreen mode in a standalone build r.vsync 0 is not respected and the game always runs at a locked 60fps. When the game doesn't have focus, for instance when you press Wi ...

MoviePipeline: Python Editor example can double-up objects in-scene

UE - Anim - Sequencer - Jan 4, 2022

See the UDN for sample project. This is caused by the Editor Python sample not using the UMoviePipelineQueueSubsystem, which (when rendering) blocks the Sequencer from auto-binding to PIE. The fix ...

Error packaging Android after disabling Vulkan Support

UE - Platform - Mobile - Jan 3, 2023

Regression: Tested in UE5/Release-5.0, this issue does not occur and is a regression. This issue occurs when packaging for Android ASTC, ETC2, and DXT. Packaging with Support Vulkan enabled results ...

Stateless Connect Handler's SessionId and ClientId checks not working with SteamSockets

UE - Online - Feb 14, 2023

We've had a couple of reports of the recently added session/client id checks in the StatelessConnectHandlerComponent failing when using SteamSockets. The connections fail with the "Rejecting handsha ...

[AI] Stack overflow in canRemoveVertex of DetourTileCacheBuilder

UE - AI - Navigation - Sep 28, 2023

User reports of stack overflow happening in canRemoveVertex in DetourTileCacheBuilder.cpp if a poly has more than 16 vertices. The array for edges is a fixed array and is written to without checking ...