Unreal Engine Issues

Background blur missing with HDR CompositeMode 1

UPD: According to Affects Version field, issue reproduces in 4.26, Regression for 4.27 - No. ...

Movie Render Queue does not render letterboxes to exports with sensor aspect ratios between 16:9 and 1:1

There is a discrepancy between how Movie Scene Capture (Legacy) and Movie Render Queue handle letterboxing for sensor aspect ratio's that do not match the export resolution, which seems to be a bug ...

Forward Rendering MSAA causes black outlines of meshes when partially occluding Sky Atmosphere

Sky artefacts when Cast Cloud Shadows enabled

[CrashReport]UE4Editor-AudioMixerXAudio2!Audio::FMixerPlatformXAudio2::OpenAudioStream(Audio::FAudioMixerOpenStreamParams const &) [AudioMixerPlatformXAudio2.cpp:951]

This issue is occurring on startup for users. This could be potentially related to a recent Windows Update. ...

Mobile Previewer: Safe Zone Invalid Until Window Resize

When the Mobile Previewer loads, the Safe Zone widget is not working properly at startup, and requires a window resize to update to the correct Safe Zone. ...

Ray tracing in sequencer causing AO ghosting

HLOD not working in sublevels in cooked build when Save LODActors to HLODPackages is set to true

Texture Array "reimport" button does not update textures

Material Quality Level not working with Layers