EQS Overlap test no longer recognizes custom Collision Object Channel

UE - AI - Nov 12, 2019

Environment Queries Ignore tests for Custom Collision Object Overlaps. Note: The expected behavior seems to have worked in 4.21, After following the steps to reproduce, I can verify a successful de ...

SynthComponent does not execute OnStop() after calling Stop()

UE - Audio - Nov 26, 2019

SynthComponent does not execute OnStop() after calling Stop(). OnStop() will be called in PumpPendingMessages() via OnGeneratePCMAudio(). But after stopping the AudioComponent, the procedural Sound ...

Opening a new sequence can have SavePreAnimatedState and RestorePreAnimatedState called out of order

UE - Anim - Sequencer - Nov 21, 2019

When switching to a sequence where the current time is not in the target view range the PreAnimatedState of the new sequence will be saved before restoring the PreAnimatedState of the old sequence.  ...

Mentioning "_Validate" suffix in code comments to function names causes Compiler error

UE - Foundation - Cpp Tools - UnrealHeaderTool - Dec 13, 2019

When mentioning the _Validate Suffix in code comment, Visual Studio compiler throws an error. ...

Sequencer evaluation can skip events due to gaps in frame number ranges

UE - Anim - Sequencer - Dec 18, 2019

Sequencer rounds when converting time ranges to frame number ranges, which can cause one frame gaps. If an event falls on that gap, it will not be triggered.  ...

The vertex color view mode in the vertex painting editor mode ceases to work when the project setting "Extend default luminance range in auto exposure settings" is enabled.

UE - Graphics Features - Dec 31, 2019

When "Extend default luminance range in auto exposure settings" is enabled, the Color View Mode in the vertex painting editor mode ceases to work and without any warning to the user. ...

Making a navigation system 'strictly static' affects all subsequently created navigation system instances

UE - AI - Mar 26, 2020

The problem is a result of two things: UNavigationSystemV1::bStaticRuntimeNavigation being staticUNavigationSystemModuleConfig::UpdateWithNavSysCDO copying the data from nav sys CDO, including bStat ...

Current animation asset is lost in animation preview when a post process anim BP is compiled

UE - Anim - Runtime - Anim Blueprints - Aug 3, 2020

UDebugSkelMeshComponent and PreviewInstance are lost current animation asset. There are 2 ways to fix below void UDebugSkelMeshComponent::InitAnim(bool bForceReinit) { // If we already have Pre ...

The color picker stops working after changing the color once on a color property on a component

UE - Editor - UI Systems - Slate - Nov 13, 2019

Changing the color on a component property via the color picker will cause the picker to stop working until it's closed and reopened. This occurs because a property change event is sent out, and the ...

Creating a plugin marks the plugin enabled without loading it

Tools - Apr 19, 2017

The editor is required to restart for the Editor Toolbar Button plugin to appear. The plugin is enabled and the project is compiled, but the button does not appear. After further discussions, we a ...