Restore state doesn't work in Blueprint actors when sequence is set to Allow Sequencer Edits Only

UE - Anim - Sequencer - Nov 8, 2019

Blueprint actors do not having their states properly restored when only sequencer edits are allowed. The licensee has noticed that the USceneComponent* is different after edit in FComponentTransform ...

Update DefaultEngine.ini file when open project settings tab.

Tools - Nov 12, 2019

There are no changes to the parameters in the .ini file, just the file has been updated. Source control becomes dirty by re-saving the file.  ...

Vector Field Initial Rotation will always have the same initial rotations for each emitter instance

UE - Niagara - Nov 11, 2019

The Vector Field Initial rotation module will have the same rotation for all instances of the same emitter. This is a regression from 4.22. ...

Shader Compiler Crashes in Remote Build

UE - Graphics Features - Nov 11, 2019

Output log when crashing UATHelper: Packaging (iOS): LogCook: Display: Max memory allowance for cook 16384mb min free memory 0mb UATHelper: Packaging (iOS): LogCook: Display: Mobile HDR setting 1 ...

SetCollisionEnabled shouldn't check owner

UE - Simulation - Physics - Nov 8, 2019

Attempting to set the collision of a component to NoCollision while the actor's collision is disabled will prevent the component's collision from changing. This is because of the early exit in UPrim ...

Client Build Errors with VS 2019

UE - Simulation - Physics - Nov 11, 2019

When building UE 4.23 from source using VS 2019, there are compile errors when building the Targets DebugGame Client and Development Client. Note that Debug Client builds successfully. The errors ar ...

BaryCentric comparison inaccuracies

UE - LD & Modeling - Modeling Tools - Mesh Editing - Nov 12, 2019

A user reported FMath::SegmentTriangleIntersection returning false negatives, seemingly due the results of FMath::ComputeBaryCentric2D being checked with strict inequality as opposed to non-strict i ...

Duplicating inherited variables in the MyBlueprint panel doesn't copy data from the old variable to the new variable

UE - Gameplay - Blueprint Editor - Nov 12, 2019

Duplicating inherited Blueprint variables should copy the data from the original variable to the duplicated variable. ...

FClothingSectionData::IsValid is not marked const

UE - Simulation - Physics - Character - Nov 13, 2019

FClothingSectionData::IsValid() is not marked const. ...

[Feature Request] Random number generators in UE4 have short periodicity.

UE - Foundation - Core - Nov 14, 2019

Random generators in UE4 have a short periodicity. (FMath::Rand and RandomStream) I heard a xorshift variant has good characteristics. Could we consider importing it into UE4? [Image Removed] ...