Unreal Engine Issues

Third Party Library Plugin won't load in packaged build

Plugins created using the Third Party Library template won't load in a packaged build or the Launch button in the Editor Toolbar, but will if launched through the Project Launcher Window via the Edi ...

Level sequencer's play to(second) function not working as expected

The function Play to(seconds) does not functions as it's tooltip implies. "Play the sequence from the current time, to the specified time in seconds". The function instead snaps to the specified tim ...

"Simulate Selected" overwrites "Physics Type" property when playing in Editor

"Simulate Selected" overwrites "Physics Type" property when playing in Editor. In any subsequent PIE sessions SK_Mannequin will simulate physics even though the option is toggled off. This was repo ...

Attaching a removed Actor in Sequencer causes a crash

This is a regression from 4.23.1 (CL-9631420) where Sequencer just displayed the re-attached binding in yellow text instead of crashing. The user suggests that the deleted actor should be removed fr ...

SSGI doesn't function properly using Vulkan

Screen Space Global Illumination appears really dark when using the Vulkan RHI on Windows and Linux. This behavior is also present in a Shipping build. This was reported and tested on 4.24.1 (CL-1 ...

Oculus Touch Menu Button Input Not Received When Set In Action Mapping

The left menu button on Oculus Touch doesn't have it's input received when it is assigned to an action mapping. This looks like it stopped working after SteamVR was integrated into the engine. Foun ...

Cannot copy and paste cloth config parameters

Copy/pasting cloth configs used to be possible in 4.23. It then got broken in 4.24 (crash) with the introduction of changes required for the new physics engine. In 4.25, the config evolved to a Map ...

Volumetric Cloud + Sun ghosting artefacts around a static cube

Video of the issue here - [Link Removed] 4.27 and 5.0 seem to display slightly different outcomes. In 5.0 the sun only appears very close to the cube, whereas in 4.27 is can appear a bit further ou ...

Fix up IOS errors calling UI API from non-UI threads

Hitching when scrubbing values inside of color picker in binary builds

Large hitching is occurring when click dragging inside the color wheel of the color picker or scrubbing RGB, HSV, and Value/Saturation sliders. I am only able to repro this issue in Binary builds. ...