Importing a New Substance Preset will crash the engine

UE - Foundation - Core - May 13, 2015

With the Substance plugin installed and when you try to import new preset data into the Substance Graph Instance, the engine will crash ...

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 ...

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. ...

Editor crashed on exporting a skeletal mesh twice after garbage collection occurs

Tools - Sep 21, 2017

Issue was occurring with wildly varying repro steps, after speaking to Jurre and enabling gc.CollectGarbageEveryFrame 1 it was easy to conistenty reproduce this issue. note: I was getting this iss ...

Crash calling destroy actor for Geometry Collection while it's simulating

UE - Simulation - Physics - Destruction - May 12, 2020

Crash occurs when user call Destroy Actor on a Geometry Collection Actor. This seems to only occur while the actor is simulating. If called while on the ground, it doesn't seem to occur. ...

Access Violation in delegatesignatureimpl.inl after HotReload

UE - Foundation - Core - Jan 27, 2017

This is the third different callstack in an attempt to repro a HotReload crash I am experiencing. The other two are:[Link Removed]: Nullptr Ensure and crash after HotReloading[Link Removed]: Assert ...

Editor Utility Nested in Expandable Area Causes Editor Crash

UE - Editor - UI Systems - Dec 15, 2022

A 'user-created' widget in the body of an Expandable Area of an Editor Utility Widget causes a crash, after selecting 'Run Editor Utility Widget'. ...

Crash setting actor rotation via details panel in VR editor

UE - Editor - Workflow Systems - Feb 3, 2017

Crash attempting to input value for Rot Y in a floating details panel. Found on //UE4/Release-4.15 CL-3283184. Reproduces in Binary and P4 versions of the editor. Reproduces in //UE4/Main CL-3283 ...

Syncing Font Assets through Subversion can cause a crash

Tools - Jun 5, 2017

A licensee is having issues syncing their fonts folder from within the editor using Subversion. This issue only occurs with their Fonts folder; with the callstack they supplied, this leads me to bel ...

Sequencer Playlist - Triggering a playlist will crash every other editor on a Multi-user session

UE - Virtual Production - Tools - Sequence Playlist - Nov 24, 2022

[Link Removed] ...