Button for Swap Paint Color and Erase Color Disappeared.

Tools - Aug 2, 2017

In 4,15, we can use button for swap paint Color and erase color. But, in 4.16 and 4.17, it disappeared ...

Custom event parameter set to 0 by default

UE - Gameplay - Blueprint - Aug 14, 2017

Default parameters do not appear to be retained for custom events. This was tested in 4.17 and the issue does not occur in 4.16. Appears to be a regression ...

UStaticMeshComponent.PreviousLODLevel always returns 0

UE - Graphics Features - Aug 30, 2017

The UStaticMeshComponent.PreviousLODLevel variable always returns 0 no matter what the last LOD actually was. Regression?: No This also occurred in 4.16 ...

Can't inherit from ALight without a linker error

UE - Gameplay - Feb 22, 2024

This is a regression from 5.3. It should be possible to inherit from ALight outside of the engine module without any sort of errors. Case: [Link Removed] ...

Crash when double clicking on RowStruct's CurveEditor

UE - Editor - Applied Usability - Mar 15, 2024

This problem can be reproduced with UE5.3 even after applying fix [Link Removed]. We have verified this issue with UE5.1 and it is not reproduced.  ...

Editor Crash after Compiling Primary DataAsset

UE - Gameplay - Blueprint Compiler - Feb 16, 2023

After compiling a data asset blueprint, attempting to open the parent data asset will crash the editor. From licensee: This is because in FAssetEditorToolkit::InitAssetEditor() the objects in Objec ...

Crash upon opening packaged game when Event Driven Loader is disabled

UE - Foundation - Core - Apr 26, 2019

Packaged games are unable to open when Event Driven Loader is disabled. The error message given is: Assertion failed: !Linker->GetSerializeContext() [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\C ...

[AI] BehaviorTreeEditor crash when swapping from Behavior Tree to Blackboard view.

UE - AI - BehaviorTree - Aug 24, 2023

The first time that a Behavior Tree editor window changes from the tree to the Blackboard can cause a crash if you add and remove a key from the Blackboard via a different Behavior Tree editor windo ...

[Concurrency] - Voice Steal Release Time Doesn't Work when using a Priority Based Resolution Rule

UE - Audio - Voice Management - Aug 24, 2021

When using a Priority based Concurrency rule, the Voice Steal Release Time is ignored and ejected sounds stop abruptly. Test Notes: See attached video. Note: I've shelved the test map and assets ...