Unreal Engine Issues

Text to Speech does not work in Play in Editor

This is not a regression as the TTS plugin isn't available in 4.27.2. Text to Speech does not work in Play in Editor, but does work in Stand Alone. A warning is thrown:LogSlateStyle: Warning: Unab ...

Crash occurs when duplicating a State Machine in the My Blueprint panel within an Animation blueprint

This is not a regression. Tested in //UE4/Release-4.27 CL18319896 Crash occurs when duplicating a State Machine in the My Blueprint panel within an Animation blueprint. ...

Crash in FMaterialUtilities::CreateFlattenMaterialInstance when building Simplified HLOD layer

From licensee: The issue here starts in FVoxelizeMeshMerging::ProxyLOD() where the FlattenMaterial created using FMaterialUtilities::CreateFlattenMaterialWithSettings() returns an empty struct. I d ...

[MetaSounds][Voice Management] - MetaSounds set to Restart do not virtualize correctly when the Attenuation Shape is not a Sphere

When using Attenuations with MetaSounds, if the Attenuation Shape is Sphere it works as expected. However, other shapes do not work correctly. The sound either becomes deactive or sometimes the soun ...

[UDN 00456011] Actors attached to a static mesh socket inside a blueprint actor not updating when the mesh is moved.

Lots more info in UDN ticket: [Link Removed] TLDR is that if a construction script moves a child component with an attachment point, it's attached actors don't follow. This causes editor tools to n ...

Touch Movement controls are dysfunctional on Android throughout gameplay.

NOTESThis issue is not encountered when a controller is connected to the device.Please note that the "Touch And Motion" settings were all set to default throughout all occurrences of this defect.Ple ...

A Blueprint containing a Macro with a Wild Card input crashes when a Custom Event node has an additional input added

This is a regression. Tested in //UE4/Release-4.27 CL18319896 In UE4 an error is thrown when attempting to add an input. A Blueprint containing a Macro with a Wild Card input crashes when a Custom ...

Opaque material assigned to a Material Billboard attached to a Pawn renders differently against the Sky/Infinity when moving

This is a regression. Tested in //UE4/Release-4.27 CL18319896 Opaque material assigned to a Material Billboard attached to a Pawn renders differently against the Sky/Infinity when moving. Tested ag ...

Stride Warping in manual mode not activating correctly based on first StrideScale

From licensee: If StrideScale is 1 the first time through, it initialises the StrideScaleModifierState to 1 and doesn't require updating so leaves the CachedDeltaTime at 0 by never calling Update_I ...

MoviePipeline: Apple ProRes/Avid DNx crash when "Overwrite Existing Output" is off