Unreal Engine Issues

Crash in reinstancing after removing a variable from a component and compiling

Changing the navigation for the root of a widget blueprint will cause a crash

Changing the navigation of the root of the widget blueprint will cause the editor to crash ...

Crash When Opening a DataTable Based Off a Struct With a Timecode Variable

When a datatable is based off a struct with a timecode variable it will crash when opening. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, 4.25 Preview 4 CL#12366721, 4.26 CL#12123513 ...

Crash launch application adding .umap url

The application crashes when adding ".umap" to the launch map at application launch. If not specify ".umap", it will be able to launch application. There appears to be a failure to parse the URL. Th ...

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 ...

The Command and Control keys are swapped for Input nodes on Mac

Mac only. The Command and Control keys are swapped for Input nodes. Pressing the Left Command key triggers Left Ctrl, pressing Left Control triggers Left Cmd, and pressing Right Command triggers R ...

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 ...

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 ...