Unreal Engine Issues

Crash reimporting an FBX with LODs and Morph Targets, but leaving "Import LODs" disabled

Error message: Assertion failed: ImportedResource->LODModels.IsValidIndex(LODIndex) [Link Removed] [Line: 282] Source Context: 270 * Constructor. 271 * Converts a skeletal mesh to ...

Attempting to override timeline function in child blueprint crashes editor

Attempting to override a timeline within a child blueprint causes the editor to crash. Frequency: 4/4 Crashreporter: [Link Removed] ...

Undo/Redo can cause the gizmo to desync from a leaf-selected component

This is a regression from 4.27. This is happening because of the change to typed elements. UEditorEngine::PostUndo, when combined with the typed element changes causes the selection set to reorder ...

Download of Starter pack sometimes fails

The Find Node Can Crash on Compile After a Blueprint Compile Error

The "Find" node can cause a crash if the a map with a struct value changes type while connected, is disconnected and reconnected. Compilation fails and crashes the engine. Found in 4.23.1 CL#963142 ...

Editor crashes when attempting to reimport multiple Data Table assets that do not have an associated data source file

Attempting to Reimport multiple Data Tables that do not have associated data source files results in the Engine crashing. When a single Data Table is selected to be reimported, the Editor asks for t ...

[CrashReport] UE4Editor_CoreUObject!UObjectProperty::SerializeItem() [propertyobject.cpp:39]

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 ( ...

[CrashReport] UE4Editor_UnrealEd!TArray<TScriptDelegate<FWeakObjectPtr>,FDefaultAllocator>::Find() [array.h:784]

This is a regular crash occurring in 4.17. It may be a regression as there is no immediate evidence of it occurring in prior releases. Users have not provided any descriptions of their actions whe ...

[CrashReport] UE4Editor_OculusRift!FHeadMountedDisplay::GetCurrentHMDPose()

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: IsInGameThread() [Link Removed] [Line: 1047] Source Context ...

[CrashReport] UE4Editor_Engine!UWorld::SetActiveLevelCollection() [world.cpp:6248]

This is a common crash that has been affecting users since 4.16. It may be unrelated, but a non-crash bug mentioned the same stack in [Link Removed] User DescriptionsI was creating a level and dra ...