Unreal Engine Issues

Buffer Overrun with GPUSkinCache

In GPUSkinCache, based on the conditional expression:if (CacheCurrentFloatOffset + NumRWFloats > (uint32)GGPUSkinCacheBufferSize) { // Can't fit this INC_DWORD_STAT(STAT_GPUSkinCache_SkippedFo ...

Materials Are Brighter in 4.24 and 4.25

Materials are brighter in 4.24 and 4.25 than they were in 4.23. I created the same basic material in 4.23, 4.24, and 4.25 and the 4.23 iteration was slightly darker. Found in 4.24.1 CL#10756747 Rep ...

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 ...

Dragging the Translation Widget in Perspective Viewport on Mac in a second monitor does not translate the selected Actor

Dragging the Translation Widget in Perspective Viewport on Mac does not translate the selected Actor, and when dragging is released the cursor is moved to the top left corner of the Viewport. Happen ...

UCommonVideoPlayer/Electra does not work in 5.3

This appears to be connected to playing immediately upon opening. This behavior is not observed when in the Release-5.1 or Release-5.2 streams. With the same setup, the video will start playing on t ...

Using the down arrow key in the Toolbar's Blueprints > Open Blueprint Class sub-menu will immediately open the first Blueprint listed

Using the down arrow key in the Toolbar's Blueprints > Open Blueprint Class sub-menu will immediately open the first Blueprint listed. Reproduced in 4.8.3 binary, 4.10 Preview 1 binary, and Main (C ...

Import FBX Camera with 90 degree rotation

The FBX Import into Sequencer currently assumes that the camera has a rotation axis of 0, -90, 0. This assumption shouldn't be there. For example, currently this works: 1) From Sequencer, export a ...

Sprite sheets cannot be reimported in 4.8 in a project that was converted from an older version

User bug report: Why do you guys remove the Json Importer from UE 4.8? All atlases from TexturePacker can not be imported anymore on our projects. Is there a way to activate it? or maybe is there a ...

Crash in GetScreenRect on OPPO and Vivo devices

Cannot export a Datasmith scene to the Unreal Engine project root folder on MacOS.

This is mac specific. I could do the export normally on Windows with the same Twinmotion CL and UE version (5.5 preview).  It is also a regression specific to 5.5, since I've been able to export a d ...