Unreal Engine Issues

Crash when converting non-WP maps containing landscape with OnlyMergeSubLevels enabled

When trying to convert a non-WP map with OnlyMergeSubLevels enabled crash after a while ...

Updates to DesiredFocusWidget for a UserWidget are not propagated to existing instances of it inside the WidgetTree of other widgets

This issue has been reproduced in UE 5.3 to 5.7 and source versions. A repro project is available. Below are the findings from an initial investigation of the problem. Normally, when a UserWidget p ...

Cook failure when World Partition maps have level instances using level blueprints

The following cook error results from attempting to package a WP map that has level instances using level BPs: LogCook: Error: PackageSplitter found the Generator package still in memory after it ...

UE-47779 - Crash exiting packaged PlatformerGame while in the Main Menu

This was occurring when I quit via the Quit button in the Main Menu GUI. I also repro'd this using the "Quit" command in the console. I found this on Linux, but this was repro'd on Mac and Windows ...

Creating new objects inside ForEachObjectWithOuter may cause the bucket of the iterated outer to be read-locked permanently

Not a Regression. Tested in: //UE5/Release-5.0 CL 18747223 Source-GitHub //UE4/Release-4.27 CL 18319896 Binary User Description: "The crash test code is located at Source/HashBucketLockedBug/Pr ...

AllowCommandletRendering D3D12 device crash

Sqlite plugin crash on iOS

Crash opening Infiltrator packaged on Windows for Linux

This occurred on packages that were created on different Windows machines. This crash is not occurring on other platforms during our Samples Pass. ...

Android Projects packaged for arm64 crash on device.

This issue was discovered while smoke testing Release 4.13 for Preview 2. ...

Crash after enabling iOS Metal Desktop Renderering and then enabling iOS SM5 Preview Rendering Level