iOS launch screen might briefly appear in Portrait before switching to Landscape

UE - Platform - Apple - Nov 13, 2023

Sometimes on the first launch of the game after install, the launch image will be a cropped portrait drawn in landscape orientation, on the left side of the screen, with the top and bottom getting c ...

When enabling virtual texture lightmaps it looks different viewing

UE - Graphics Features - Lumen - May 15, 2020

After switching the Virtual texture lightmap on/off, it looks different. It looks like there is a difference in the light map because there are some missing shadows (see attached screenshots). ...

Screen Space Reflections not showing in Panoramic Capture

UE - Graphics Features - Sep 10, 2020

Reflections not showing in Panoramic Capture images. Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), and 4.23.1(CL 9631420).  ...

Reimport FBX does not correctly update frame-rate

UE - Anim - Runtime - Apr 2, 2024

This is an issue with the sequencer model, it does not clear its bPopulated flag so doesn't allow for changing the frame-rate to a non-compatible (multiple/factor off FPS). ...

FRuntimeFloatCurve in datatable causes editor crash

UE - Editor - Apr 24, 2024

Inside SCurveEditor::ZoomToFitHorizontal and SCurveEditor::ZoomToFitVertical, the program navigates through a TArray<FRealCurve*> called CurvesToFit in a for each loop. Inside the for loop, if the p ...

Vulkan is crashing on S7 Mali

UE - Platform - Mobile - Mar 10, 2017

Projects packaged for Android using Vulkan are crashing on S7 Mali devices. This is not happening in 4.14. ...

Reverting a BP interface category does not update the context menu

UE - Gameplay - Blueprint Editor - Jul 28, 2020

Ray Traced Shadows ignore mesh occlusion on water when enabled

UE - Graphics Features - Ray Tracing - Apr 25, 2024

A forum user reported an issue where object geometry occlusion would be missing when Ray Traced shadows were enabled. I was able to reproduce the issue internally where occlusion seems to be missing ...

If an ensure() fails within an automated test, the test can still show a positive result.

UE - Automation Test - Aug 4, 2015

If an ensure() fails within an automated test, the test can still show a successful result. ...

Crash when loading iCloud/CloudKit SaveGame on iOS

UE - Platform - Mobile - Jun 5, 2019

"...it seems the crash occurs because it is trying to load an empty (0 byte) save file. Stepping through the code in Engine/Plugins/Online/IOS/OnlineSubsystemIOS/Source/Private/OnlineUserCloudInterf ...