Unreal Engine Issues

Pressing ESC while on a drag operation makes drag visual to be disappeared and OnDragCancelled not to be called.

DragDropOperation is removed when pressing esc button. but this is skipping OnDragCancelled so it can disrupt user's UMG drag operation logic.  ...

Foliage Lightmaps are incorrect when using a Lighting Scenario and running as standalone

4.22.1 Crash in FVulkanResourceMultiBuffer::Lock

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

4.23 UpdateGrass took twice time than 4.22

Widget Components Add Thin Black Outlines to Images

When a slate element that uses a png with a transparency the edges have a black outline. When the Widget3DPassThrough material is applied to the widget the effect is lessened, but is the outline sti ...

Digital Human Eyes Don't Look Correct With Ray Tracing Translucency Enabled

The eyes in the Digital Human demo don't look correct with Ray Tracing Translucency enabled in the post process volume. Found in 4.24.1 CL#10757647 Reproduced in 4.23.1 CL#9631420, 4.25 Main CL#111 ...

NavModifierVolume's FailsafeExtent is applied to the wrong area

The FailsafeArea of NavModifierVolume is generated at a different location from the center of the actor when it rotated. This means that the effect of rotation is incorrect. (see attached file) W ...

MipLevel sample mode doesn't work as expected in Adaptive RVT

When StaticMeshComponent is added to an empty Actor, no HLOD is generated.

When a Cube of StaticMeshActor is placed, it is generated without any problem. ...

Ensure occurs when RBAN simulated rigid body approaches UseComplexAsSimple mesh

When a collision enabled RBAN node attempts to collect surrounding meshes, if there is a mesh with UseComplexAsSimple, it will hit the Ensure when cloning a mesh on the task graph thread. Disabling ...