Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Crash When Undoing Changes in Widget Blueprints
Tools - Oct 13, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...
//UE5/Main - UE.EditorAutomation(RunTest=Physics) Win64 - CableActor_CableCameraActor6 and 2 tests failing due to cable actor disappearing
UE - Graphics Features - Feb 22, 2021### The following test(s) failed: ##### BasicCableComponentMaterials: Project.Functional Tests./Game/Tests/Actor/CableActor.BasicCableComponentMaterials * LogAutomationController: Error: S ...
Crash diffing an AnimBP with a node deleted from a State Machine Transition
UE - Gameplay - Blueprint - Mar 10, 2017Error message: Assertion failed: false [Link Removed] [Line: 1123] Looking for node K2Node_AnimGetter_327 but it cannot be found in provided panels Source Context: 1108 } 1109 111 ...
Alembic Geometry Cache is corrupted on reopening of project leading to crash
UE - Foundation - Core - Dec 20, 2016Alembic Geometry Cache crash when re-opening the project and a map that contains this asset or adding it to any existing/new levels will instantly crash the editor. This asset works correctly in the ...
Adding a new macro to a Blueprint Macro Library after renaming the first macro causes a crash
UE - Framework - Blueprint - Mar 17, 2022It seems the editor crashes when adding a new Macro to a Blueprint Macro Library. This only occurs if you rename the macro that gets automatically created when you open the macro library to somethin ...
Editor crash when using Straighten Connection shortcut key
UE - Gameplay - Blueprint - Feb 8, 2017Using Straighten Connections shortcut can cause the editor to crash after removing node pins. This appears to be due to GetGraphPinForMenu returning the last pin selected (in this case, the removed ...
WorldToClip/ClipToWorld transform in materials not behaving as expected
UE - Rendering - Features - Dec 19, 2025In 5.3, the specified code will return all 0 or very small as expected. However in 5.4.4 and onwards (also checked in 5.6.1 & 5.7.1), it returns very large numbers. ...
Crash occurs when diffing blueprint that has had one of its variables changed to a Soft Object Reference
UE - Gameplay - Blueprint Editor - Oct 3, 2017A crash occurs when diffing a blueprint that contains an array that has changed from an Object Reference to a Soft Object Reference. Note: I figured that this could be related to another bug that I ...
A partially broken Geometry Collection ends up with garbage CollisionGroup data that can lead to strange behaviors
UE - Runtime - Deformable - Apr 27, 2025A partially broken Geometry Collection (GC) ends up with garbage CollisionGroup data that can lead to strange behaviors. The licensee has noticed that a GC that goes thru a field applying ExternalS ...
[CrashReport] Assertion failed: *LinkedTo == RequestingPin [edgraphpin.cpp:1747]
UE - Gameplay - Blueprint - Aug 29, 2017This is a common crash occurring in 4.17 and back to at least 4.15. User Descriptionspress cntr Z Source Context 1734 check(ResolveType == EPinResolveType::LinkedTo); 1735 ...