Autobrake feature in ChaosVehicleMovementComponent is stopping vehicle from sleeping

UE - Simulation - Physics - Mar 5, 2025

In ChaosVehicleMovementComponent::CalcThrottleBrakeInput, autobrake is set when a vehicle is stopped - this means that when the car is virtually stationary, the BrakeOut inout parameter is always 1. ...

[Stall] AudioMixerSourceManager::FlushCommandQueue when opening editor for asset

UE - Audio - Apr 7, 2022

Live issue. Stall occurring for some users in the 5.0 Release. Currently hit 577 times by 500 users as of 2022-04-29 No specific project occurring on ...

NiagaraSystem with EniagaraGpuComputeTickStage::PostInitViews rarely crashes due to multi-thread race conflicts

UE - Niagara - Mar 1, 2025

NiagaraSystem with EEiagaraGpuComputeTickStage::PostInitViews should not have bSupportsParallelGDME because of possible multi-threaded contention, but FNiagaraSystemInstanceController::GetGpuCompute ...

MakeArray wildcard node gives a compilation error when being used in a Blueprint Macro.

UE - Framework - Blueprint - Dec 19, 2024

There is an error with the SmartMacroInterface, where you can't use an empty wildcard "Make Array" node. This error makes the blueprint not compile and the macro unusable. Disabling the bUseSimpleWi ...

[Interchange][FBX] Fail to import attributes animation curves with key values as integer

UE - Editor - Content Pipeline - Import and Export - Jan 13, 2025

cf[-https://forums.unrealengine.com/t/5-5-not-able-to-import-animation-curves-since-5-3-5-5/2267442/4-] Be carefull there is 2 bugs reported on that Forum and I think they are not related. The firs ...

Shader Symbols not Generated for Windows Platform when r.Shaders.Symbols=1

UE - Rendering Architecture - Shaders - Feb 28, 2025

Shader symbols are not generated for the Windows platform. Attempts were made to set the r.Shaders.Symbols=1 value in the projects DefaultEngine.ini, the engines ConsoleVariables.ini and the engine ...

Open street map building don't cast shadows in raster mode

TM - Rendering - Feb 14, 2025

Reproducible with cascaded and virtual shadow maps. Seems to be a regression from 2024.1.2. All TM 2025.x version have this issue. [Image Removed] ...

UMG SetAnimationCurrentTime no longer works

UE - Anim - Sequencer - Mar 6, 2025