Unreal Engine Issues

Linux crashes in the Project Browser without using the -nocef command

When opening Unreal Editor on Linux, the Project Browser opens but is completely unresponsive. Shortly afterwards the editor will crash. If you use the -nocef command when opening the Editor, everyt ...

[AI] Crash when gathering heightfield geometry on worker thread

From the body of the ticket: We aim to do as much of the work off the game thread as possible to avoid impacting frame rate. We've recently found a crash during collection of the geometry slices fr ...

Assets are invalidated if named or renamed with a leading underscore

Renaming or naming assets with a leading underscore invalidates the asset. The assets will be renamed to "None" and report occupying 1KB in space. It is no longer possible to interact with an object ...

Landscape Resize Tool Stall

From licensee: We're trying to reduce component count on our landscape using the resize tool. When modifying the landscape execution never completes. When I hit pause and get a breakpoint to see wh ...

Cannot key font material for UMG Widget animations

Crash launching QAGame onto Windows

The editor is crashing when launching onto windows. This is not occurring in Main. ...

KiteDemo: Failed to load Outer for resources

While testing KiteDemo for 4.16 Sample Pass – //UE4/Release-4.16 CL 3420042 in Binary – Two warnings occurred when opening the project.LoadErrors:Warning: Warning CreateExport: Failed to load Outer ...

Editor lock on destructible mesh spawn

Spawning an actor during TG_PrePhysics is added to TG_StartPhysics which leads to the editor locking up when multiple actors are spawned. ...

Problem importing broken FBX

An FBX exported from 3DEXCITE DELTAGEN fails to parse correctly in the latest FBX SDK and crashes the UE importer. This FBX is automatically repaired when loaded into Maya (citing "polygons with ov ...

Code classes with a portion of the project name and parent type cannot be created.

When adding code to a project, class names cannot be used if they contain a portion of the project's names and the type of class of the parent. Message says that the name is already used by another ...