Editor Crashes When Cloth Asset Is Applied To Material With Support Compute Skincache Enabled

UE - Simulation - Physics - Character - Feb 24, 2017

After enabling Support Compute Skincache if you attempt to apply a cloth asset to a material in the skeletal mesh editor the engine will crash. This may seem similar to [Link Removed] but I confir ...

[CrashReport] UE4Editor_Engine!FSceneView::FSceneView() [sceneview.cpp:627]

UE - Editor - UI Systems - Slate - Apr 11, 2017

Opening UE4.14 using thecommand line "-forceenablecrashtracker," results in a red circle on the top right of the editor that when clicked provides a link to a 20 second video recorded from when you ...

Noticeable Audio Pop when Opening a New Level after Spawning and Playing a Sound with Volume Multiplayer at 0.0

UE - Audio - May 18, 2017

A licensee is reporting an audible pop when transitioning between levels with a sound spawned and playing at volume multiplier of 0.0. The original report was a discrepancy between the old audio en ...

Collision properties of a component cannot be changed in Viewport

UE - Simulation - Physics - Apr 26, 2018

When using any collision preset other than QuerryOnly, the collision properties cannot be changed when the actor is in the Viewport. ...

ForLoop used inside BP Function Library always returns 0 index when used in a Construction Script

UE - Gameplay - Sep 18, 2018

Using a For Loop inside of a Blueprint Function or Function Library will always return index 0 when used in the Construction Script. This was reported and tested in 4.19.2 (CL-4033788). This was r ...

Scrollbox under multiple retainerboxes doesn’t scroll correctly with PIE

UE - Editor - UI Systems - Aug 14, 2019

When the scrollbox as the child of multiple retainerboxes, the scroll isn't smoothing. It can see issue with PIE only. If it run with standalone (or package build) is fine. In SScrollBar::ExecuteO ...

Asset Registry GetDerivedClassNames does not work properly during editor startup

UE - Foundation - Core - Jun 25, 2020

This bug comes from https://udn.unrealengine.com/questions/585499/view.html which describes a problem where a licensee is trying to use the AssetManager to scan a primary asset type that is generate ...

Painted Vertex colors are not retained when using "Convert Selection to Blueprint Class" in Child Actor mode

UE - Gameplay - Blueprint - Aug 25, 2020

From the User Submission: I spent some time poking through the FComponentInstanceDataCache code and noticed that there is no component instance data saved/applied for'native' component types, so si ...

Ensure when closing PIE during Level Sequence playback with spawnables in a streamed level

UE - Anim - Sequencer - Nov 16, 2020

When a spawnable is spawned in a streamed level, exiting PIE will cause an ensure, because the world is not valid on the actor.  ...

Crash when cooking landscape collision in world partitioned level

UE - Graphics Tools - Terrain - Landscape - Jun 24, 2022

This is caused by the loss of data in the ULScapeHeightfieldCollisionComponent::CollisionHeightData. The CollisionHeightData is not marked as BULKDATA_PayloadInSeperateFile and is processed with a k ...