Unreal Engine Issues

Adding a Local Variable to a blueprint Construction Script will cause a crash

Adding a Local Variable to a blueprint Construction Script will cause a crash ...

Void Interface functions cannot be overridden in Blueprints

A Blueprint Interface function that does not have an Output cannot be overridden in a Blueprint implementing that function. The function does not appear in the Interface section of the My Blueprint ...

iOS will not package or launch on Win 10 machine

Launching or packaging for iOS does not work on our Windows 10 machine however we are able to package and launch onto iOS devices from Windows 7 machines. Using the File > Package > iOS option with ...

Vulkan crash on Android when suspending and resuming app

Custom Fonts do not show up properly in HTML5

Custom UMG fonts do not show up correctly when launching to HTML5 from a packaged project. The fonts show up correctly for Windows packaged projects. ...

Graphical issues in editor after changing monitor resolution on Linux

Changing the monitor resolution on Linux causes Editor windows to show graphic errors. ...

Forward Rendering Lightmap Density view flicker

The shaders flicker when in Lightmap Density viewmode after enabling Instanced Stereo Rendering in Project Settings > Engine > Rendering > VR  Tested in 4.21.2 (CL - 4753647) 4.22.3 (CL - 7053647), ...

Directional light triggers 'too many overlapping lights' error in forward shading

The underlying reason seems to be that the stationary lights require SM channels for casting shadows  from movable objects and they are assigned channels 0,1,2 by lightmass (or somewhere along the w ...

Unreal Architecture link in Unreal Terminology website doesn't work

Unreal Architecture web link doesn't work. A user cannot enter the website to see the terminology of the Unreal Architecture. ...

Alpha blending is done twice when using RenderOpacity of RetainerBox's parent slot

Licensee reported that alpha blending is done twice in the code below, and the fix below seems to fix it. .\Engine\Source\Runtime\UMG\Private\Slate\SRetainerWidget.cpp From:const FLinearColor Compu ...