Unreal Engine Issues
Unreal Engine Issues
Crash after clearing the animation from a sample point in a 1D Blendspace
OLD - Anim - Mar 8, 2017Regression: YES, sort of. The ability to change the animation from a dropdown didn't exist in 4.14 Error message: Fatal error: [Link Removed] [Line: 160] Ran out of memory allocating 51539607528 ...
Blueprint with Niagara System and Skeletal Mesh Components Automatically Updates Niagara System Skeletal Mesh
UE - Niagara - Apr 4, 2019When adding a niagara system that reproduces a skeletal mesh and a skeletal mesh as components to a blueprint, the niagara system immediately updates its skeletal mesh to the most recently updated s ...
[CrashReport] UE4Editor_Engine!UModelComponent::GetPhysicsTriMeshData() [modelcomponent.cpp:674]
UE - Simulation - Physics - Sep 12, 2017This is an occasional crash in the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 664 for(int32 ElementIndex = 0;ElementIn ...
In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled
UE - Runtime - Deformable - Jun 30, 2025In a Geometry Collection, enabling Nanite Fallback in a Nanite Enabled collection won't generate a Physics Body when Nanite is disabled. To verify this, follow the steps provided in the Steps to Re ...
Non-Struct CDO component properties display incorrectly in the property editor.
UE - Gameplay - Blueprint - Aug 17, 2016UObjectProperty properties within a UActorComponent class aren't exposed for editing in the Details panel when choosing to edit native component defaults in the BP editor. ...
Crash reimporting an FBX with LODs and Morph Targets, but leaving "Import LODs" disabled
UE - Editor - Content Pipeline - Import and Export - Jan 4, 2017Error message: Assertion failed: ImportedResource->LODModels.IsValidIndex(LODIndex) [Link Removed] [Line: 282] Source Context: 270 * Constructor. 271 * Converts a skeletal mesh to ...
Available network bandwidth is too low for uncapped but slow frame rates
UE - Networking - Sep 24, 2020The networking system has a max frame rate of 120hz by default. Inside UNetConnection::Tick it computes an estimated bandwidth by using that max frame rate, the engine's max frame rate, and the actu ...
In Standalone mode, when reading world partition actor descriptors for BP actors, "bIsSpatiallyLoaded" receives its value from the native base class instead of the BP class, so BP actors are loaded/unloaded based on the wrong condition.
UE - World Creation - Worldbuilding Tools - World Partition - Oct 15, 2024Consider an actor defined in C++ with "bIsSpatiallyLoaded" set to true (the default), and a derived blueprint that overrides "bIsSpatiallyLoaded" to false. Now consider an actor instance of that blu ...
[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 ( ...
[CrashReport] UE4Editor_Core!FModuleManager::LoadModuleChecked() [modulemanager.cpp:350]
UE - Foundation - Core - Aug 10, 2017This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: Module [Link Rem ...