CreateProxyObjectForPlayMontage does not report if cannot play

UE - Anim - Rigging - Nov 15, 2018

UPlayMontageCallbackProxy::CreateProxyObjectForPlayMontage creates a proxy object and immediately calls PlayMontage. If the montage fails to play (no mesh component, no animinstance, Montage_Play it ...

Sequencer render movie output not rendering Construction Script results

UE - Anim - Sequencer - Nov 15, 2018

The rerun construction feature works while scrubbing/playing in the sequencer and observing the results in viewport, However, when outputting the movie using Sequence Movie Output. The results of th ...

Animation Modifiers that contain a null Animation Sequence value cause the Engine to crash when applied to an Animation Sequence

OLD - Anim - Nov 14, 2018

When an Animation Modifier passes a null Animation Sequence value to an Animation Sequence the Editor will crash. This is a regression from 4.20.3 (CL-4369336). This was reported and tested in 4.21 ...

.glTF importer crash - UE4Editor-GLTFImporter!ImportStaticMesh

OLD - Enterprise - Nov 14, 2018

Enabling the gLTF plugin and trying to import a glTF asset results in a crash. ...

Volumetric Fog Renders incorrectly in the right eye for Oculus when Instance stereo is enabled

UE - Platform - XR - Nov 14, 2018

Volumectric Fog causes Actors to render differently in each eye when instanced stereo in enabled. The left eye appears to render the scene correctly while the right appears to render the actors in t ...

Custom Stencil Not Working for Mobile

UE - Platform - Mobile - Nov 14, 2018

Setting a custom stencil on meshes is not working when using a mobile renderer. This is working as expected in 4.20 CL# 4369336 Found in 4.21 CL# 4541578 and 4.22 CL# 4556068 This is a regression ...

Adding HISM instance on a Dedicated Server causes a crash

Tools - Nov 14, 2018

Adding an instance of an HISM on a dedicated server causes an assert. Regression?: No This occurred in 4.20 ...

IsEditorOnly Components hidden from Component Tree when duplicating

UE - Gameplay - Blueprint Editor - Nov 14, 2018

IsEditorOnly Component is hidden when it is duplicated. This can be redisplayed by blueprint compile, but it is preferable that it is the same as when IsEditorOnly is disabled. Gif1 is the case of ...

Crash when copy and paste a Child Actor Component in blueprint.

UE - Gameplay - Blueprint - Nov 14, 2018

A crash occurs when copy and paste the ChildActorComponent, only if the template actor has a DefaultSubObject. There is no crash in the case of using Actor (eg. AActor) without a DefaultSubObject as ...