Level Sequence spending long time validating assets

UE - ACT Character - Control Rig - Aug 31, 2026

Hi After migrating our animation project from 5.7 -> 5.8 we notice that some level seqeunces take much longer to save (during validation stage). This issue only exhibits when using control rigs in ...

Profile GPU Command Crashes Standalone Game on Mac

UE - Platform - Apple - Mar 21, 2017

[Link Removed] "ProfileGPU" Command Crashes Standalone Game on Mac but not on a Windows PC. Regression: No ...

Network profiler can report sent RPCs despite a null ViewTarget preventing the send

UE - Networking - Nov 17, 2020

Due to the hard-coded 1.5 second timeout for clients in UNetDriver:if ( OwningActor != NULL && Connection->State == USOCK_Open && ( Connection->Driver->GetElapsedTime() - Connection->LastReceiveTime ...

OSVR is affected by screen percentage Post Process volumes

UE - Platform - XR - May 6, 2016

Found on: //UE4/Dev-VR CL-2967563 Screen percentage post process volumes affect rendering on the OSVR. It also renders incorrectly when affected. The incorrect effect has been logged as [Link Remo ...

Stop using power of 2 RTs for landscape edit layers

UE - Graphics Tools - Terrain - Landscape - Apr 4, 2023

Result : all the RTs allocated for edit layers (in global merge mode) will be padded to the next power of 2 for no good reason, which can lead to out-of-VRAM (as reported by [Link Removed]) ...

Crash occurs when opening a ShooterGame package on 32-bit

UE - Graphics Features - Jan 17, 2017

A 32-bit ShooterGame package will crash when opened with no logging. ...

ContentExamples crashes on Mac Metal when pressing the button for Example 2.3 in UMG.umap

UE - Graphics Features - Jan 19, 2017

When pressing the button for example 2.3 in the UMG map of content examples (Spawns a 3D UMG Widget), the editor crashes. ...

Cloth simulation breaking after scaling > 10

UE - Runtime - Simulation - Jan 4, 2023

Reproduced 3/3 times, issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Simulation appears to work fine when scaled by 10, but any higher and it starts to mis ...

Exposure Is More Extreme In High-End Mobile Preview Modes

UE - Platform - Mobile - Feb 16, 2017

In high-end mobile preview modes the exposure will return much more exaggerated results. This is related to the new default tone mapper settings since changing r.TonemapperFilm to 0 solves the issue ...