Buffer Overrun with GPUSkinCache

UE - Graphics Features - Nov 7, 2016

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

UE - Graphics Features - Dec 24, 2019

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

UE - Rendering Architecture - RHI - Jan 20, 2020

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

UE - Platform - Apple - Nov 11, 2014

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

UE - Media Framework - Jan 30, 2024

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

UE - Gameplay - Blueprint - Oct 15, 2015

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 ...

Engine crashes while attempting to resimulate procedural foliage volume with target layer set on landscape proxies

UE - World Creation - Worldbuilding Tools - Foliage - Apr 17, 2015

If a procedural foliage volume attempts to use the "target layer" feature and resimulate while encompassing a landscape proxy, the editor will crash. Frequency: 3/3 Crash Report: [Link Removed] ...

Import FBX Camera with 90 degree rotation

UE - Anim - Sequencer - Aug 15, 2016

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 ...

Visual glitches on Mac OS X using an Intel GPU while playing HW accelerated H264 video

UE - Graphics Features - Dec 2, 2014

This looks to be a system driver bug, but logging here for transparency and future reference. It took me a long while to figure out that the key issue is a conflict during blit between UE4 and the H ...

While a Custom Event's delegate pin is connected to anything its details are not visible in the Details panel

UE - Gameplay - Blueprint - Oct 27, 2015

While a Custom Event's delegate pin is connected to anything its details are not visible in the Details panel. Tested with an empty reroute node as noted below as well as a Set Timer node. Reproduc ...