4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

UE - Rendering Architecture - RHI - Jul 31, 2019

Vulkan Multibuffer Lock mechanism for ReadOnly does not appear to be implemented. Temporary workaround has been provided to licensee. ...

Expanding and altering a macro affects other macros in use.

UE - Gameplay - Blueprint - Nov 6, 2017

Using the Expand node feature on a macro from a macro library alters the current functionality of other instances of the macros that are in use(even though the macros themselves have not changed). ...

LevelSnapshots affect level visibility when restoring snapshot

UE - Virtual Production - Tools - Level Snapshots - Nov 2, 2023

Slack thread [Link Removed] ...

ILC/VLM doesn't affect Static Staticmesh at all on Mobile

UE - Platform - Mobile - Sep 23, 2019

In practice, developer wants some Static-Staticmesh actors don't build lightmaps to save iteration time as well as Memory and Package size; but still want lit by Indirect lightings ...

Rotation gizmo affects post processing and reflections in the scene

Tools - Jul 6, 2015

This has been around since public launch. The rotation widgets emissive material will cause trouble with the post processing and reflections in the scene. Especially troublesome if you with bloom an ...

Panning in blueprints does not appear to be affect by windows pointer speed

Tools - Nov 14, 2016

The windows mouse speed settings appear to have no effect on the panning speed in blueprint. ...

Using Start Players as Spectators checkbox does not affect Player0

UE - Gameplay - May 20, 2015

When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...

MetaSounds isn't working with Modular Game Features - LogMetaSound: Error: Target interface is not registered

Audio-Gameplay-Engineering - Nov 22, 2022

Reproduced 3/3 times. Issue also occurs in //UE5/Release-5.0 - CL 20979098 Binary. Confirmed NOT a Regression. Errors:[2022.11.22-18.11.28:472][  0]LogMetaSound: Error: Target interface is not regi ...

Sound Mix Modifiers do not properly affect Sound Class

UE - Audio - Mar 30, 2015

Sound mixers do not properly override variables within a sound class. This prevents users from being able to modify variables such as volume or pitch quickly and efficiently by using the push/pop st ...

[CrashReport] Access violation in UE4Editor_Engine!TOctree<TVolumeLightingSample<3>

UE - Graphics Features - Jun 14, 2017

This is a common crash in the 4.16 release. The callstack for the issue is essentially the same as [Link Removed], however that issue had confirmed repro steps and was verified fixed for 4.16.0. A ...