Unreal Engine Issues

Material Layers "swap" location instead of shift downwards.

Licensee request for this as it is affecting productivity. Likely requires a method of allowing a user to choose which behaviour they prefer. For reference, the behaviour changed in CL 11684461 to f ...

External Actors can hold stale references to Blueprint classes as edited instance properties

When a component is removed from a class that exists as an instance with external actors enabled, a deleted BP component on an actor will remain referenced by the instance. Disabling External Actor ...

UInstancedStaticMeshComponent::AddInstances does not appear to be adding per-instance previous transforms when enabled

Instanced static mesh component does not add instances transforms to PerInstancePrevTransform array when using UInstancedStaticMeshComponent::AddInstances. Additionally Updating the transforms of th ...

Comment boxes no longer allow pinning/unpinning of comment bubbles

Comment bubbles above comment boxes no longer have an option to pin/unpin comment bubbles. This functionality allowed users to choose whether or not to show the comment bubble, which was useful for ...

Masked Materials have become more expensive to use

Masked Materials have become more expensive in 4.13 and internal builds than in 4.12. Images attached for demonstration along with test map using the bush prop from starter content. Tested with ...

UMG Viewmodel Plugin -- When setting up View Bindings, several arithmetic and comparison functions are missing from the "Conversion Functions" list

When setting up View Bindings from the "UMG Viewmodel Plugin" on a Widget Blueprint, it is possible to select a compatible "Conversion Function" from the list of available bindings. By default, the ...

[CrashReport] UE4Editor-Core!static void PureCallHandler() [WindowsPlatformMisc.cpp:477]

Generated from CrashReporter Error Message: Fatal error: [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Core/Private/Windows/WindowsPlatformMisc.cpp] [Line: 475] Pure virtual function bei ...

Engine crashes while attempting to resimulate procedural foliage volume with target layer set on landscape proxies

If a procedural foliage volume attempts to use the "target layer" feature and resimulate while encompassing a landscape proxy, the editor will crash. Frequency: 3/3 Crash Report: [Link Removed] ...

IMC incorrectly retains the state of a modifier set in a lower priority mapping context.

Destroy Component node does not work on decals

Destroy Component node does not destroy decals when called. ...