Thumbstick clicks do not register on Linux

UE - Platform - Linux - Jun 6, 2017

The "Left Thumbstick Button" and "Right Thumbstick Button" events on Linux do not trigger with the thumbstick is clicked. Testing all gamepad input, clicking the thumbstick in appears to call the L ...

Drag and Drop Import option allows folders with space in name

UE - Editor - Content Pipeline - Import and Export - Jul 7, 2017

By using the drag and drop import feature, users can import files that contain spaces in the name. This causes an error in the editor where files inside it cannot save because of the name. Renaming ...

Unhovered event occurs twice with 3D Widget when button is pressed and held

UE - Editor - UI Systems - Jul 21, 2017

When using a 3D Widget that is a button when you press and hold a button and move off of the widget and let go of the mouse the engine registers a second unhovered event. Engine Version tested 4.1 ...

AssetManager can load blueprints of the wrong type when redirectors exist

UE - Gameplay - Sep 29, 2017

The logic in the AssetManager to determine if a scanned Blueprint should be added to the primary asset directory is wrong if that blueprint has an active redirect targeting it. The simplest way to r ...

[CrashReport] Mac crash - UE4Editor-SlateCore.dylib!SWindow::IsVisible()

UE - Platform - Apple - Oct 12, 2017

This is a trending Mac crash coming out of the 4.18 previews. Most of the project titles experiencing this crash mention "AR" It is the exact same callstack and crashgroup as [Link Removed], but th ...

fbx attribute curve import do not support correctly tangent at the start end end of the curve

UE - Editor - Content Pipeline - Import and Export - Sep 2, 2020

We are not reading all the key flags and we do not import correctly start key and end key tangent. I create a shelve but this is not the complete fix, we must do this only if we do not have fbx ket ...

Editor crashes on start up after updating to 5.0 - Assertion failed: (TTraits::WithIdentical || TTraits::WithIdenticalViaEquality) [File:E:\UnrealEngine\UE_RelTestA\Engine\Source\Runtime\CoreUObject\Public\UObject\Class.h] [Line: 1476]

Quixel - Apr 6, 2022

User's are reporting that after updating to 5.0 the editor crashes on start up. This happens when converting an old project, creating a new project, or attempting to open a project. Some are reporti ...

Copying collapsed graph with a node with a custom Exec pin results in duplicate pin name

UE - Gameplay - Blueprint Editor - Aug 17, 2022

When duplicating a collapsed blueprint graph which has a node with a custom Exec pin, this results in blueprint compilation error that a duplicate named pin is found. Duplicated exec pins aren't ass ...

FAnimUpdateRateParameters::GetInterpolationAlpha appears to be returning an invalid value for TrailMode

UE - Anim - Aug 5, 2023

It appears that  FAnimUpdateRateParameters::GetInterpolationAlpha is not returning a sensible value when running in TrailMode.  Currently the only variable in the calculation is EvaluationRate which ...

Crash when creating new projects or converting copies of old ones in Japanese

UE - Editor - UI Systems - Slate - Dec 4, 2014

There's a crash in FCharacterList::GetKerning() when using the editor in Japanese that is apparently fixed in one of these three changelists: CL# 2370014, 2370050, and 2370040 But they were not ...