Unreal Engine Issues

422 YUV To RGB Conversion produces incorrect result

UE 5.4 - Specular/reflection disappears above 4096 resolution render

After a viewport is more than 4096 pixels wide, Lumen's specular reflections buffer cuts its width off at 4096 pixels. It appears that the affected buffer is "Lumen.Reflections.ResolvedSpecularIndi ...

Niagara Sim Cache result from 3D Gas is blocky in Windows packaged game

Summary: Cached 3DGas Niagara system appears blocky in packaged game. Brought up by a licensee via UDN: https://udn.unrealengine.com/s/question/0D5QP00000a17A40AI/niagara-fluids-simcache-artefacts- ...

Material Graph Editor crash when changing the value of a node entering a reentrant expression

It is possible to cause an editor crash when changing a the value of a node involved with a reentrant expression. See the steps to reproduce for more information. Specifically, the crash occurs whe ...

Camera Shot Blend does not work when Reverse Play

Camera shot blending on Sequencer does not work when Reverse Play. If we place two cameras in a scene and just blend them by Camera Shot track in sequencer, the view point is interpolated between th ...

iOS package with Metal Desktop Renderer renders reflections incorrectly

When having Metal Desktop Renderer ON, the project renders incorrectly and shows a coloring/lighting issue on the character's reflection. ...

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder. That breaks the Reimporting functionality.

An imported file that resides within the project's folders gets a relative path. That path is not updated it you copy the uasset to another folder, so from the location of the new asset's the relati ...

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP) makes Physics simulating ragdolls fly off into space.

Changing the Global Time Dilation to a very small value and returning it to a large value (by either using the slomo console command or directly in BP - slomo sets TimeDilation) makes Physics simula ...

Restricted Gameplay Tags cannot be added

The Gameplay Tags settings have the option to set up restricted tags as described in the documentation. Prior to 5.3, the UI correctly supported creating new restricted tags as described in the old ...

Niagara and Water Source Body Component

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