Skeletal Mesh rigid body simulation is not being updated with correct bones locations right after Skeletal Mesh is spawned

Physics - Nov 5, 2018

When simulating in Editor, the Skeletal Mesh bone locations are not being passed into simulate if the simulation is being toggled the same frame when the Mesh is being set on a Skeletal Mesh compone ...

PressMethod is not called in UButton::RebuildWidget()

Tools - Slate - Nov 5, 2018

The void function UButton::RebuildWidget() does not call PressMethod when rebuilding the widget. Tested  4.19.2 (CL- 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4537669), 4.22 (CL - 4531805) ...

Random Sequence Player has a first Pop in animation during Play In editor

Anim - Animation - Nov 1, 2018

It seems that the first time an animation is played, the character pop into place. ...

Gameplay Tag Query using NoTagMatch expression does not construct DebugString properly

Gameplay - Nov 1, 2018

The code in GameplayTagContainer.cpp has code for generating debug strings representing tag queries. Compare the code in EmitTokens in all other queries to the code in UEditableGameplayTagQueryExpre ...

Button input is ignored when toggling Input mode from UI to Game

Gameplay - Input - Oct 31, 2018

IE_Released is called when switching between the Game and UI input modes, despite the button being still held. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4527422), 4.22 (C ...

Crash reported when launching the binary Editor on a 2018 iMac Pro

Platform - Mac - Oct 31, 2018

There has been a report of a consistent crash of the binary Editor on launch when it is being launched on an iMac Pro. Additional information from two separate reports about this crash seem to indi ...

LookAt AimOffset Animation node does not interpolate with it's Blendspace

Anim - Oct 29, 2018

The "LookAt AimOffset" animation node does not recognize the interpolation setting on its assigned Blendspace. This causes the animation to snap to positions instead of smoothly rotating to them. ...

Unable to Play Sequence in PIE when changing levels in C++ with ClientTravel()

Sequencer - Oct 25, 2018

Changing levels with ClientTravel() breaks ability to activate sequence. Client Travel API: [Link Removed] Confirmed in 4.22 MAIN at CL 4503321  ...

Hot reload fails after adding a Static Mesh Component to a new Actor code class in a project that was originally Blueprint-only

Core - Hot Reload - Oct 25, 2018

Starting a hot reload by clicking the Compile button in the Editor fails after adding a Static Mesh Component to an Actor code class. This only occurs in the binary version of the Engine, and only i ...

The "alignas" keyword cannot be used with a USTRUCT

Core - Oct 24, 2018

The alignas keyword is not usable with a USTRUCT. It can be used with a normal struct. ...