[CrashReport] Assertion failed: !IsLoading() in CollectGarbageInternal()

Tools - Jun 14, 2017

This is a common crash occurring for users in the 4.16 release. It is spread out across many different CrashGroups with slight variations in callstack. Users have not provided any descriptions whe ...

Apex Cloth disappears when Setting Custom Time Dilation to Zero

UE - Simulation - Physics - Character - Aug 24, 2016

Apex Cloth assets disappear if you set the Custom Time Dilation to 0.0. You can workaround the issue by setting the Custom Time Dilation to 1.0, and then use the 'Force Cloth Next Update Teleport a ...

A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work.

UE - Simulation - Core - Nov 22, 2024

A welded hierarchy blocks updates to collision settings on all but the root primitive. Calling SetCollisionResponseToChannel on the children won't work. The licensee noticed that IPhysicsProxyBase* ...

Shortcut(Function, Add a new function graph) leads to crash in the MacroLibrary editor.

UE - Gameplay - Blueprint Editor - Dec 4, 2017

Shortcut will still led to create a new function in the macro library. and this makes engine crash with following callstack. Assertion failed: Blueprint->BlueprintType != BPTYPE_MacroLibrary [Link ...

Adding "_API" specifier to FMovieSceneTrackEditor results in linker errors

UE - Anim - Sequencer - Feb 7, 2017

Unable to add API specifier to FMovieSceneTrackEditor, results in compile errors (pasted in the callstack field) ...

Crash when building lighting with a skylight that draw lit translucent material

UE - Graphics Features - Aug 14, 2017

A common crash affecting many users in 4.17.0 ...

If enable Preview Slot of non-default slot in AnimMontage, AnimNotify of AnimationSequence does not run.

UE - Anim - Runtime - Jul 15, 2021

The AnimSingleNodeInstance used in the AnimMontage preview does not consider multiple Slots. The following is a correction code. void UAnimSingleNodeInstance::SetAnimationAsset(class UAnimationAsse ...

ListView crashes when GlobalInvalidation is enabled.

UE - Editor - UI Systems - Slate - Jan 11, 2022

Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...

Crash closing the TM_Landscape map in the editor

UE - World Creation - Worldbuilding Tools - Foliage - Apr 18, 2017

The editor is crashing after closing the TM_Landscape level This is a regression from 4.15.2 ...

Camera Shakes with Oscillation Blend Out Time do not play for their full duration in Sequencer

UE - Anim - Sequencer - Sep 20, 2019

Camera shake oscillations with blend out time do not play their full duration in sequencer.  ...