Compiling Control Rig can break rig behavior in Sequencer

UE - Anim - Rigging - Control Rig - Aug 14, 2023

When working with a Control Rig in Sequencer, compiling the Control Rig used by an actor will cause the rig to no longer drive movement for the actor's skeletal mesh. Licensee provided sample proje ...

Crash on map change with non-null values for GPropertyColorationClass and request customizable property coloration color

UE - Editor - Workflow Systems - Aug 7, 2023

This was found by a customer through a UDN, and they offered the fix for it, as well. The basic steps to reproduce the crash are as follows:call GEditor->SetPropertyColorationTarget(...) somewhere i ...

ImageSize in Image widget is not set when setting a texture as a brush

UE - Editor - UI Systems - UMG - Aug 1, 2023

Since FDeprecateSlateVector2D has been implemented in 5.2, the following function calls will always fail. Therefore, the ImageSize is not updated. This problem does not occur in 5.1.   void SBrus ...

Result pin of Cast Node of ControlRig can not break

UE - Anim - Rigging - Control Rig - Jul 26, 2023

In UE5.1, the Result pin of the ControlRig cast node could be broken, but it cannot be broken from UE5.2. ...

[Device Swap] - Assertion failed: AudioStreamInfo.StreamState == EAudioOutputStreamState::Closed [File:D:\build\++UE5\Sync\Engine\Source\Runtime\AudioMixerCore\Private\AudioMixer.cpp]

UE - Audio - Jul 25, 2023

Issue has been seen a couple times internally and closed as No Longer occurring. Looking at Crash Reporter, issue has been seen live a number of times. Looking at user logs, occurs after:LogAudioMi ...

When creating a new NiagaraSystem using existing system, the DefaultEffectType set in ProjectSettings is not reflected.

UE - Niagara - Jul 24, 2023

When creating a new NiagaraSystem, the DefaultEffectType set in ProjectSettings should be reflected. If another EffectType is already set, it should be respected. The problem here is that when creat ...

Niagara and Water Source Body Component

UE - Niagara - Jul 19, 2023

This has changed from 4.27 and the Deep Dive video on water: [Link Removed] ...

Reproducible softlock on iOS

UE - Platform - Apple - Jul 18, 2023

After performing the repro steps, screen will softlock unless you perform the "slide from 3 to 4, then back to 3" steps.  Appears to be an iOS system bug, but see if we can find a workaround. ...

Navmesh does not update according to the volume, when an actor with a navigation volume tied to a parent is moved.

UE - AI - Navigation - Jul 14, 2023

When a NavmeshBoundsVolume or NavModifierVolume is parented to another actor in the outliner, navmesh is not updated along the volume when the parent actor is moved. If the volume is deleted and the ...

[AI] Editor crashes when editing values of an FInstancedStruct's TArray inside of a BP

UE - AI - Jun 30, 2023

While using a custom struct that contains a TArray member variable with FInstancedStruct, you cannot edit it in the editor without a crash. Other structs and types work as expected even if they deri ...