Unreal Engine Issues
Unreal Engine Issues
Alembic Files Import With Blocky UVs
UE - Editor - Content Pipeline - Import and Export - Dec 6, 2019Alembic files imported come in with blocky UVs. Attached is a zip with the files and pictures that show the issue. Found in 4.23.1 CL#9631420 Reproduced in 4.24 Preview 4 CL#10387632, 4.25 Main CL# ...
Visual inconsistencies when zooming in/out in the designer tab
UE - Editor - UI Systems - Jun 9, 2017Visual inconsistencies when zooming in/out in the designer tab. In the example provided. There is a vertical box containing sever images with a top padding of 1. When zooming in and out of the graph ...
Ambient Occlusion decals ignore Receive Decals setting on meshes
UE - Graphics Features - Feb 13, 2020Adding an ambient occlusion decal material to a decal affects objects with "Receives Decal" disabled. Tested in: 4.23.1 CL#9631420 4.25 CL#11341939 ...
Collision on rolling ball template floor incorrectly affects player character
Docs - Samples - May 27, 2015In the rolling ball template, the new floor meshes cause the player character to jump when the player has not pressed any jump commands. It occurs more often if the players movement has been increas ...
Listen Server Without Microphone Will Drop Clients with Microphone if Voice is Enabled
UE - Networking - Mar 28, 2017Listen servers that do not have a microphone hooked up are dropping clients that do have microphones when the client attempts to transmit voice. The log contains the following errors: [2017.03.28- ...
Slow while replacing actor in large open world
UE - DEET - EditorPerformance - Nov 8, 2022Licensee: "Content creators from my team have reported that when they replace actors in an open world it can take more than 10 seconds. This is with several thousand actors loaded in the world. On m ...
Live Link Hub hang when discovering YUV444 encoded takes in Capture Manager
UE - Virtual Production - IO - LiveLink - May 28, 2025When using Capture Manager in Live Link Hub to discover takes which contain video encoded with the YUV444 pixel format will cause the application to hang. The Windows Media Foundation library used ...
Array index out of range with StopTree
UE - AI - Mar 26, 2019Crashes when exiting PIE while executing multiple async tasks. By explicitly executing EndTask and FinishAbort of RecieveAbort, this caused by performing out-of-range in array access to InstanceStac ...
Editor becomes unresponsive/freezes when a Geometry Collection is destroyed by a Hit Event while simulating
UE - Simulation - Physics - Destruction - Apr 19, 2023This is a regression. Tested in //UE5/Release-5.1 CL23901901 When a geometry collection is destroyed by an On Hit event the editor becomes unresponsive and never recovers. No crash is generated. ...
Surface Material's AO will show through a Decal when static lighting is disabled
UE - Rendering Architecture - Materials - May 31, 2023A surface's Ambient Occlusion will appear through a decal when static lighting is disabled in project settings. Regression tested against //UE5/Release-5.0 CL 20979098 //UE5/Release-5.1 CL 23901901 ...