Disabling internal audio to use external audio system shows "Audio Device Manager Initialization Failed!" warning

UE - Audio - Mar 11, 2024

In addition, we can find  "Main audio device could not be initialized. Please check the value for AudioDeviceModuleName and AudioMixerModuleName in [Platform]Engine.ini." log message in the engine. ...

UE does not prompt a User for Login when Perforce has OIDC (URL) setup

UE - Editor - Workflow Systems - Mar 7, 2024

UDN Case #: 01130491 From UDN: Our Perforce is using Company internal OIDC for authentication. This is an example when login/logout from command line, that when attempting to login, internet brows ...

GeometryCollection clustered by ClusteredGroupIndex does not respect child's gravity setup

UE - Simulation - Physics - Mar 7, 2024

Following code works as a workaround void FClusterUnionManager::HandleAddOperation(FClusterUnionIndex ClusterIndex, const TArray<FPBDRigidParticleHandle*>& Particles, bool bReleaseClustersFirst) ...

SAnalogSlider moves slowly when step size is large

UE - Editor - UI Systems - Slate - Mar 6, 2024

SAnalogSlider calculates FastestStepTime by multiplying the step size value by a constant, resulting in high numbers for larger step sizes. This gets lerped from 1 and used as the repeat time, resul ...

FVulkanDynamicRHI::RHIReadSurfaceData​ incorrect for FLinearColor​.

UE - Rendering Architecture - RHI - Mar 4, 2024

The FLinearColor implementation for FVulkanDynamicRHI is incorrect. FLinearColor stores 32 bit floats in linear space, while FColor stores 8 bit integers encoded with sRGB applied. The implementatio ...

Skeletal Mesh reduction clamps UVs at 1024

UE - Anim - Rigging - Mar 4, 2024

View Changes: external changes desync state and trigger checks

UE - Editor - Workflow Systems - Mar 2, 2024

External changes to source control are causing state desyncs which get expressed in code as multiple operations on the same items in the same UI visit. This check is in place because when only using ...

ASan on iOS is broken

UE - Platform - Apple - Mar 1, 2024

Address Sanitizer (asan) is currently not working on iOS. This could be a helpful feature to get working again. ...

Blueprints break when implementing a duplicated BP interface along with the original

UE - Gameplay - Blueprint - Mar 1, 2024

When duplicating a blueprint interface, the GraphGuids of the original BP interface's function graphs are unchanged: function graphs across the two BP interfaces now have the same GraphGuid. This is ...

iOS Quick Launch from the Editor no longer starts the app on device

UE - Platform - Apple - Feb 28, 2024

For some reason, iOS apps no longer launch on device when using QuickLaunch within the Editor.  Instead, it does install the app onto the device, but when it attempts to then launch the app, a messa ...