Unreal Engine Issues

The brightness of a reflection capture can't be changed at runtime on mobile

[AI] Compilation error when using const version of FNavigationPath::CastPath<PathClass>() const

Const version of function is not used elsewhere in the engine so it usually gets skipped when compiling. Produces the following error when compiling:  UnrealEngine\Engine\Source\Runtime\Navigation ...

MoviePipeline: Python Editor example can double-up objects in-scene

See the UDN for sample project. This is caused by the Editor Python sample not using the UMoviePipelineQueueSubsystem, which (when rendering) blocks the Sequencer from auto-binding to PIE. The fix ...

The customstencil doesn't work properly for separate translucency with r.SeparateTranslucencyScreenPercentage

Custom Primitive Data types do not work with Procedural Meshes even though the option exists in their Details Panel

This is a not a regression. Tested in UE5(Binary), UE4(Binary), and UE5 Main(P4). Procedural Meshes have the option for CPDs listed in their details panel under Rendering > Advanced >Custom Primit ...

iOS launch screen storyboard is never released

Stencil that has been marked with ResponsiveAA is cleared by DistortionPass

From UDN: When an object with ResponsiveAA enabled is in the screen and then an object with Distortion enabled comes into the screen, ResponsiveAA does not work. ​ I guess this is because the Ste ...

/std:c++17 key is hidden in generated .vcxproj after adding it to the BuildConfiguration.xml

As far as I can tell this is a regression. After including C++17 in the build configuration it shouldn't be hidden in the .vcxproj? ...

GAMEPLAYATTRIBUTE_REPNOTIFY does not properly propagate OldValue

Associated UDN [Link Removed] We've been having some issues with the replication of attributes. Namely we have an OnRep_ function for an attribute that receives FGameplayAttributeData& OldValue a ...

Using a fixed frame rate will cause you to leave the loop section of Montage.

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...