Unreal Engine Issues

FPS and Editor GPU Selector don't appear on Mac after enabled in Preferences

Toggling these options should enable these features in the editor but nothing changes after restarting the editor on Mac. User can still toggle Show FPS using the hamburger menu – this is expected t ...

Inconsistent ListView entry sizes can prevent the ListView from being scrolled to the bottom

Since the contents of a ListView are virtualized, the ListView estimates the size of the scroll box's contents based on the on-screen elements. This can lead to some situations where DistanceFromBot ...

SpeedTree asset import data seemingly not marked editor only object

Licensee reports log spam when running editor in -game mode, complaining that a SpeedTreeImporter plugin object can't be loaded. This would be because some UObject defined by the SpeedTree editor p ...

Splitting a Structure input pin from within a Collapsed node results in duplicate inputs

This is not a regression. Splitting a Structure input pin from within a Collapsed node results in duplicate inputs that over ride any data passed into the struct pin. ...

Scrubbing material roughness value in MI causes large frame drops

Editor freezes on selection of Blueprint Components

Editor freezes and stops responding on selection of Blueprint Components; Requiring the editor to be forced closed. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue di ...

FPS drop (present time increase) when moving the editor windows to secondary screens

The licensee has mentioned that they also see an FPS drop without a second monitor, so this can happen just by separating windows out on the same screen. ...

Material slot assignment incorrect after mesh reduction completely removes all triangles from a section

When mesh reduction results in a section becoming empty, the material slots are incorrectly assigned. e.g. if section 0 gets removed due to it having no triangles after reduction, then its material ...

BlendOutTime setting doesn't work when unlinking multiple anim layers

When we unlink the layer, we call UAnimInstance::PerformLinkedLayerOverlayOperation In that function, ClassToSet is null, so we loop over the layer nodes and call SetLinkedLayerInstance(this, nullp ...

Differences in DistanceToNearestSurface and DistanceFieldGradient results between 4.27 and 5.0

In the UE5 case, we end up seeing very harsh lines in both the gradient and the distance to nearest surface examples whereas the results in 4.27 appear smooth.  It was also interesting to observe c ...