Unreal Engine Issues

FPackedRGBA16N is divide by 32768 twice in NEON/FPU

Composite Decorator Graph nodes are not updating titles when changes are made to the properties of a node

Composite Decorator Graph nodes are not updating titles. Upon closing and reopening the Composite Decorator Graph, the nodes do refresh to their properly set title. Repro Rate: 3/3 Tested this in ...

Ensure tripped: "Template Mismatch during attachment."

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 ...

[Source Effect Chain][Blueprint] -Add Source Effect To Preset Chain Has No Effect

Add Sound Effect to Preset Chain has no effect on the Source Effect Chain. [Link Removed] ...

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point

Selecting other components after selecting a Spline Component's control point keeps the transform gizmo and functionality at the Spline Control point Repro Rate: 4/4 Tested this in //UE4/Release-4 ...

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 ...

Scrubbing material roughness value in MI causes large frame drops

TArrayView64 RangeCheck prints the incorrect error messages for values over 32-bit length

TArrayView64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regre ...

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 ...