SSR Experimental Denoiser crashes when enabled using Vulkan

UE - Graphics Features - Apr 27, 2020

Enabled the SSR Experimental Denoiser using Vulkan causes the Engine to crash. This crash does not happen with DX11 or DX12. This happens on Linux and Windows (-vulkan). This was reported and teste ...

Creating Widget at run time with an exposed variable causes Engine crash with Assertion

Tools - May 8, 2020

If you are using the default values of the In Size the project will run fine, but changing the values will make the engine crash. This was reported and tested in 4.25 (CL-13144385) and reproduced i ...

BP child not overriding parent's mesh in Nativized builds

UE - Gameplay - Blueprint Runtime - Jan 3, 2017

The mesh on the right is a child of the one on the left, in a non-nativized cooked build it's a sphere, but in a nativized one, it's a cube. Regression: Working: UE4/Main, 4.15 CL 3233043 Broken: U ...

Potential major HLOD dynamic shadow performance issues

UE - Graphics Features - Feb 22, 2017

See https://udn.unrealengine.com/questions/336882/hlod-dynamic-shadow-issues.html . Potential major performance issues with HLOD and dynamic shadowing incorrectly drawing sub meshes. Also missing sh ...

SteamVR Stereo layers are using incorrect orientation conversion

UE - Platform - XR - Mar 6, 2019

"SteamVR stereo layers are using the wrong coordinate system conversion and are being improperly rotated. All other conversions in the SteamVR module are using the correct one, just this particular ...

Contact offset multiplier no longer working

UE - Simulation - Physics - May 10, 2019

Changes in physics code have caused rolling objects to behave differently. https://forums.unrealengine.com/development-discussion/content-creation/50364-rolling-ball-jumps-on-flat-surface Conf ...

Open Sound Control Blueprint Plugin stops working around 1 minute during play

UE - Audio - Jun 3, 2020

Messages are not received around 1 minute into playing when using OSC blueprint plugin. Test Project: [Link Removed] User workaround: https://forums.unrealengine.com/development-discussion/blu ...

Spawn Actors At Location within Dataprep Asset does not specify asset when selecting one from the drop down

UE - Editor - Content Pipeline - Visual Dataprep - Oct 10, 2023

3/3 Set Regression to no as this issue is still occurring within //UE5/Main-Release-5.3 @ CL 28051148 Halo testing was performed on other cards within the Dataprep library to see if this issue was ...

Error when exporting OBJ unattended

UE - Editor - Content Pipeline - Import and Export - Dec 1, 2020

When doing an unattended OBJ export with python. The export will fail and give the atteched callstack. ...

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled

UE - Audio - Jan 7, 2020

Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled User was able to workaround the issue by replacing Audio::FAudioCaptureAndroidStream::CloseStream() wi ...