Editor crashes on start up after updating to 5.0 - Assertion failed: (TTraits::WithIdentical || TTraits::WithIdenticalViaEquality) [File:E:\UnrealEngine\UE_RelTestA\Engine\Source\Runtime\CoreUObject\Public\UObject\Class.h] [Line: 1476]

Quixel - Apr 6, 2022

User's are reporting that after updating to 5.0 the editor crashes on start up. This happens when converting an old project, creating a new project, or attempting to open a project. Some are reporti ...

Cull Distance Volumes do not effect Blueprints or Skeletal Mesh Actors

UE - Graphics Features - Jul 31, 2014

CHANGELIST: 2181118 BRANCH: UE4 https://udn.unrealengine.com/questions/166371/cull-distance-volume-bug.html DESCRIPTION: Cull distance volumes don't seem to cull blueprints or meshes inside a bluep ...

[CrashReport] Linux crash - FScopeContext::FScopeContext()

UE - Platform - Linux - Oct 5, 2017

This is a somewhat common Linux crash occurring in 4.17.2. (there are a few older records in 4.16.2 and 4.17.1 also, but most occur in 4.17.2) Callstack from Log[2017.10.04-14.49.42:768][ 2]LogFi ...

Fix support for compiling editor in monolithic

UE - Foundation - Cpp Tools - UnrealBuildTool - Jul 1, 2016

Some licensees have reported good results compiling the editor in monolithic configurations - startup times are noticably shorter. I believe there are a number of things that need fixing up across t ...

Fix UMovieSceneSequence::FindPossessableObjectId for child bindings

UE - Anim - Sequencer - Nov 28, 2022

Calling UMovieSceneSequence::FindPossessableObjectId with a guid that relates to a child binding does not work correctly because it just goes through the binding references and calls LocateBoundObj ...

Crash reimporting a skeletal mesh with less Material IDs than on first import

NOTE: Does not occur in 4.16, entered this to find a fix for licensee to integrate. Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out o ...

Crash Clicking on Enum in BT Decorators After the Enum Has Been Altered

UE - AI - Apr 5, 2017

Clicking on a Behavior Tree decorator that references an Enum blackboard key will crash the editor if that Enum has been altered in the method described in the repro steps. If you set decorators to ...

Any events in sequencer fire at frame 0 when set to looping

UE - Anim - Sequencer - Mar 28, 2016

Any active events fire at frame 0 when the sequence loops ...

[CrashReport] UE4Editor_UnrealEd!FEdGraphUtilities::PostProcessPastedNodes() [edgraphutilities.cpp:138]

UE - Gameplay - Blueprint - Jan 24, 2017

This 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 ( ...

SyncGroups Do Not Function between BlendSpaces when Blend Time is 0

OLD - Anim - Sep 22, 2015

SyncGroups Do Not Function between BlendSpaces when Blend Time is se to "0." *It is quesitonable SyncGroups function between BlendSpaces regardless of what the blend time is set to, but especially ...