UCanvasPanelSlot::PostEditChangeChainProperty does not call Super function

Tools - UMG - Nov 13, 2018

UCanvasPanelSlot::PostEditChangeChainProperty not only does not call its Super function unless the anchor node has been set, but it calls Super:: PostEditChangeProperty instead PostEditChainProperty ...

Instance static mesh instances are reset to zero when moving actor between levels (via move actor to current level)

Tools - Nov 13, 2018

When moving an instance static mesh between sublevels the number of instances being used will be set to zero. This happens when an empty actor is added to the level and then has an instance static m ...

Reset To Defaults in Editor Preferences Graph Editor does not work consistently

Tools - Editor Properties - Nov 7, 2018

The Reset to Defaults button in Editor Preferences does not reset all the properties to their default values. Tested in 4.19.2 (CL - 4033788), 4.20.3 (CL - 4369336), 4.21 (CL - 4543149), 4.22 (CL ...

AIController can't properly unpossess character

Gameplay - Nov 5, 2018

There seems to be a bug with the Possess\Unpossess events. Because if you change the last node in "PossessCharacter", which is created in PlayerController(called "PC"), to Unpossess the AI still con ...

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) ...

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 ...

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. ...

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. ...