Assertion failed: !EditReregisterContexts.Find(this)

UE - Gameplay - Jun 22, 2015

Editor crashes if a blueprint has "Can Ever Affect Navigation" changed multiple times and is compiled. Crash link: [Link Removed] Frequency: 4/4 ...

Crash when jumping to location of referenced missing asset in a blueprint from Message Log window

Tools - Aug 29, 2016

I created a static mesh blueprint and set the mesh asset to a mesh in my project. Then I closed the project, deleted the mesh .uasset, reopened the project. When opening the blueprint, there are w ...

Crash when recombining Value Pin after swapping Target Wild Card pin from a Vector2D to a Vector on a Set By-Ref Var node

UE - Gameplay - Blueprint - Jul 18, 2022

This is not a regression. Tested in //UE4/Release-4.27 CL18319896 Crash when recombining Value Pin after swapping Target Wild Card pin from a Vector2D to a Vector on a Set By-Ref Var node.  ...

Entering 'Games App Id' for Google Play Services without configuring apk packaging first crashes the editor

UE - Platform - Mobile - Jun 12, 2015

User reported that he was experiencing a crash when attempting to put in Games App ID in Android section of project settings. Note that this occurs only if the Configure Now button in the APKPackagi ...

Crash when creating a static mesh from a Procedural Mesh Component that has been used with a Create Mesh Section node

UE - LD & Modeling - Modeling Tools - Mesh Editing - May 5, 2021

When creating a static mesh from a Procedural Mesh Component that has been used by a Create Mesh Section node, the editor crashes. The editor doesn't crash when selecting the Create Static Mesh butt ...

World Memory Leak crash creating new level blueprint after editing sub level blueprint

UE - Gameplay - Jan 27, 2020

Crash occurs when the user adds a sublevel to the current level, edits the sublevel's level blueprint, and then attempts to make a new level. The state which triggers the crash seems to be when the ...

Crash on applying animation modifier for some assets

OLD - Anim - Oct 29, 2019

When removing curves on some assets, a crash can occur. This seems to be due to const FSmartNameMapping* CurveMapping being null and dereferenced within UAnimationBlueprintLibrary::RetrieveContainer ...

Crash when loading Anim BP after undoing and saving "Use Shared Rule" in state machine

UE - Anim - Runtime - Jul 19, 2022

Reported by UDN  [Link Removed] From Slack discussion: It seems that undo-ing the transaction in UAnimStateTransitionNode::UseSharedRules, leaves the outer graph (UAnimationStateMachineGraph) wit ...

Crash reparenting actor component to InstancedStaticMeshComponent

UE - Gameplay - Blueprint - Sep 14, 2016

Reparenting an actor component to an instanced static mesh component causes a crash. Found on //UE4/Dev-Blueprints CL-3122712 ...

Editor crashes when actors using child actor component are loaded while Static mesh actor filter is enabled in the outliner

UE - Editor - Dec 5, 2022

Reproduced 3/3 times. Unclear whether this is a regression as filter GUI is new in 5.1 for Outliner. ...