Merged Instanced Static Meshes (Merge Actors tool) not visible when duplicated

UE - World Creation - Worldbuilding Tools - HLOD - Sep 19, 2018

Instanced Static Mesh Actors created with (new in 4.20) ISM Merge tool do not immediately appear when duplicated. Confirmed in 4.21 Main @ CL 4374913 ...

Digital Human Missing PhotorealEyeGeo StaticMesh

Docs - Samples - Nov 2, 2018

The static mesh "PhotorealEyeGeo" does not show up in the 4.20 version of this sample project. Found in CL# 4369336 and 4.21 CL#4534309 in the game-dev launcher This is a regression. ...

Adding a Pass By-Reference input parameter to an event dispatcher is allowed, but causes a warning when called.

UE - Gameplay - Blueprint - Nov 19, 2018

You can add a pass-by-reference input variable to an Event Dispatcher, but it will will result in compile warnings, and changes to that input will not affect the value of the variable in the caller. ...

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled

UE - Niagara - Dec 27, 2018

Niagara Component is considered for GetActorBounds With "Only Colliding Components" Enabled. Found in 4.20 CL# 4369336, 4.21 CL# 4613538, 4.22 CL# 4666322 ...

Shaped Trace by channel traces do not return true when the starting and ending point are the same

UE - Simulation - Physics - Feb 18, 2019

When a shaped trace by channel has a starting and ending point that is the same, it no longer returns true when overlapping an object. Regression: Yes This appears to work as expected in 4.21.2 bi ...

Crash in when setting label in ChildActor (infinite loop in PECP)

UE - Gameplay - Feb 22, 2019

In void ATestActor::OnConstruction(const FTransform& Transform) there is an infinite loop occuring in a ping pong call between the SetActorLabel and the DestroyChildActor calls. Happens in vanil ...

RF_WasLoaded is set to False in PIE for instances of a Blueprint if the Blueprint is recompiled

UE - Gameplay - Blueprint - Apr 5, 2019

The RF_WasLoaded flag is set to false for Blueprint instances in PIE if the Blueprint is edited and compiled. This is fixed by saving the level which is a simple workaround but this should be needed ...

[Feature Request] ReferenceViewer: Accept dynamic collection

Tools - Oct 29, 2019

In 4.23, Setting a dynamic collection to the collection filter slot does not display any result. And there are no information about dynamic collection doesn't work in collection filter. (FCollectio ...

Deleting audio subtrack deletes the entire track

UE - Anim - Sequencer - Jan 20, 2017

Noticed that deleting audio subtrack deletes the entire track. This also appear to happen to affect any property on the track. If I make it inactive or lock it that property applies to each subtrac ...

Inconsistency between Rotation Widget and Transform details

Tools - Mar 7, 2016

The rotation widget and Rotation details sidebar have inconsistent values when rotating using the widget. Also, when hitting a 90 degree rotation from 0, 0, 0, the other axis values are affected. ...