Loading levels imported with World Composition's Import Tiled Landscape option from a level without World Composition enabled loads landscape components a World Origin

UE - World Creation - Worldbuilding Tools - World Composition - May 6, 2020

Landscapes created with Import Tiled Landscape are loaded at the World Origin when loaded in a level without World Composition enabled. Enabling World Composition in the second level fixes this iss ...

ShooterGame clients can fail to connect to a server under packet loss when network encryption is enabled

UE - Networking - Jul 17, 2020

ShooterGame demonstrates the issue where when encryption is enabled, if the (unencrypted) EncryptionAck message is dropped, the resent messages will be encrypted since the server has enabled encrypt ...

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

UE - Niagara - Jan 5, 2021

[SM5] /Engine/Private/VolumetricCloud.usf(118,33-53): error X3018: invalid subscript 'VertexId' This is happening in VolumetricCloud.usf, but it seems that I can avoid the error by adding the follow ...

Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints

UE - World Creation - Worldbuilding Tools - Level Instances - Oct 27, 2022

This is not a regression. Tested in //UE5/Release-5.0 CL 20979098 Building Packed Level Actors causes references to break in the Packed level Actors' Blueprints. Rerunning the Build > Pack Level Ac ...

[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 ...

NavMesh does not update properly when "Can Ever Affect Navigation" is toggled (For Static Meshes)

UE - AI - Sep 15, 2015

This issue is related to [Link Removed] (which was fixed). However if the user creates a new actor and then adds a static mesh they can end up with permanent holes in their nav mesh. If the user tog ...

Event does not fire at end of playback range

UE - Anim - Sequencer - Aug 29, 2016

Event does not fire at end of playback range. This does work with Forced Fixed Frame Interval Playback so wonder if this is invalid? I have some test content set up in //UE4/Main QAGame QA-Promoti ...

Crash on iOS loading into a scene with Media Framework assets

Media Framework - Sep 30, 2016

Following launching a packaged Media Framework project, the application crashes. Different behavior is observed between iOS versions. When tested in 7.1.2, the video played in the scene for a few s ...

Grainy Material on Gun in FPS Template

UE - Graphics Features - Oct 14, 2016

Load up a FPS template and move around. It appears the gun becomes grainy. This was tested on an NVIDIA Geforce GTX 980 Version 373.06 and a Quadro M4000. Also tested on a AMD Radeon R9 290 @ Rade ...

Editor Crashes after updating to 4.7.2

UE - Graphics Features - Mar 7, 2015

Crash Reporter [Link Removed] User installed UE4, version 4.7.1 few days ago and I hadn't any problems with launching Unreal Editor. After upgraded the engine to 4.7.2 is getting crash every time ...