Unreal Engine Issues

DFAO in 4.9 has significant artifacts on some machines

Reported in this threadhttps://forums.unrealengine.com/showthread.php?78320-4-9-Horrible-DFAO-artifacts This looks to be a machine specific issue. I'd like to get some testing on different video c ...

Auto Exposure in Static Mesh Editor whites out the viewport when Vert Colors is enabled

In the Static Mesh Editor, Enabling Vert Colors causes high exposure in the viewport. Workaround Disable Auto Exposure in the Project Settings > Rendering > Default Settings This is a Regression ...

Staticmesh LOD mesh reduction bug with Lock Boundary

FAvfMediaPlayer::GetTime() returns the wrong time

WindowsVideoRecordingSystem can start late to record when a Record/Start action is executed.

The WindowsVideoRecordingSystem can start to record late when a StartAction is done. Not sure if it starts to record late, or the first seconds of the resulting video are ommited when the mp4 file i ...

Eye Adaptation post process volumes make the viewport extremely bright

In 4.14 when entering the volume the screen brightens which is expected. The problem is that in 4.15 it brightens more. So much so that some static meshes are rendered almost completely white. I ...

Static Mesh Editor: Give options for drawing complex/simple collision

The collision mesh and the display mesh are often similar enough to be difficult to differentiate, and there is currently no way to view the collision wireframe without the display wireframe as well ...

VolumeLightingSamples are not generated correctly

Lightmass.exe SampleVolume.cpp seems to generate VolumeLightingSamples correctly. After that, import processing is performed with Lightmass.cpp ImportVolumeSamples (), but it seems that it is not i ...

Enabling window animations causes dropdown menus to flicker and become unselectable

Not a regression as I was able to repro this in 4.25.4 The bug doesn't occur every single time, you may need to try disabling/re-enabling the setting and/or clicking on the menu dropdowns a few tim ...

Shadows tessellation are Z-Fighting in Template project with Mobile Rendering

I noticed that the shadow on orange blocks were sometimes on the front of the block and sometimes on the side of the blocks. Sometimes the shadow wouldn't render at all. ...