Unreal Engine Issues

A Simulating Physics component with StartAwake = false will be awoken by a Welded component

A Simulating Physics component with StartAwake = false will be awoken by a Welded component If a welding occurs during the call to OnCreatePhysicsState, this breaks the start awake disabled flag. Th ...

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 ...

Download of Starter pack sometimes fails

Crash in FLandscapeRenderSystem on Mobile

Similar issues have already been reported here for iOS [https://udn.unrealengine.com/s/question/0D52L00004vJelTSAS/crash-ios-in-flandscaperendersystemcomputesectionperviewparameters] and here [https ...

Error when exporting OBJ unattended

When doing an unattended OBJ export with python. The export will fail and give the atteched callstack. ...

[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 ...

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 ...