Crash happens when changing Animation Mode to any other mode while a Control Rig is selected.

UE - Anim - Rigging - Control Rig - May 17, 2022

This is a regression. Tested in //UE4/Release-4.27 CL18319896 An assertion is thrown when changing Animation Mode to any other mode while a Control Rig is selected. ...

Play Sound 2D Blueprint Start Time doesn't work

UE - Audio - May 5, 2022

Setting the Play Sound 2D start time after 0.0 will not apply when a input event is triggered, The sound will always play at the start.  This does not occur in 4.27 ...

Custom data update crash - invalid memory when removing an instance from a UHierarchicalInstancedStaticMeshComponent

UE - LD & Art - World Building - HLOD - May 3, 2022

This is a race condition, did not crash with -onethread. Attached the collected threaded callstacks, although they look misaligned. Licensee has provided a suggested fix. ...

[Quartz][Device Swap] - Quartz Clock Stops when swapping Audio Output Device

UE - Audio - Quartz - May 2, 2022

When swapping the audio output device while running PIE or a packaged game on Windows, Quartz clocks stop. Does not repro in Release-4.27, but can be reproed in Release-5.0. ...

Animation Montage Details Panel Closes When Attempting to Update Animation Segment Data

UE - Anim - Runtime - Apr 27, 2022

Occurs 5/5 times. Details panel in Animation Montage goes blank when fields (Start Time, End Time, Play Rate, Loop count) are clicked in to update data. This defect also occurs when clicking in th ...

Cook fails when a MetaSound Source object is referenced utilizing FObjectFinder in C++

UE - Audio - MetaSounds - Apr 27, 2022

Android Cook fails when a MetaSound Source object is referenced utilizing FObjectFinder in C++ Repro Rate: 3/3 UATHelper: Cooking (Android (ASTC)): LogInit: Display: LogMetaSound: Error: Target int ...

Assertion thrown while creating a Geometry Collection with Hardware Raytracing enabled along side r.RayTracing.Geometry.GeometryCollection 1

UE - Rendering - Apr 26, 2022

A raytracing project with hardware raytracing enabled and r.RayTracing.Geometry.GeometryCollection set to 1 triggers a crash when trying to create a geometry collection. ...

geometry script AppendSimpleSweptPolygon can crash if called with empty path

UE - LD & Art - Modeling Tools - Apr 26, 2022

geometry script "Append Simple Swept Polygon" crashes if called w/ an empty path (but non-empty cross section polygon) ...

Child Actor Components are visible in editor but disappears while playing or simulating.

UE - Gameplay - Components - Apr 25, 2022

Child Actor Components are visible in editor but disappear while playing or simulating. On BP_Cube_Row, setting 'Hidden in Game' to true then false during play will make the object appear. Repro Ra ...

Assign node on floats can cause a crash at runtime

UE - Gameplay - Blueprint Compiler - Apr 25, 2022

This is from a UDN and I was not able to reproduce it locally in Release-5.0 or Ue5/Main, creating this issue for tracking.  ...