Unreal Engine Issues

EQS Overlap test no longer recognizes custom Collision Object Channel

Environment Queries Ignore tests for Custom Collision Object Overlaps. Note: The expected behavior seems to have worked in 4.21, After following the steps to reproduce, I can verify a successful de ...

Delta struct serialized fast arrays replicating new elements with no changelist

There is a scenario where delta struct serialized fast arrays can replicate changes that introduce additional elements to the array, but without changelists containing the new data. This needs furt ...

Struct with a single unaltered element will remove the element from the struct on compile

If used inside a UMG Blueprint, a struct that has only one element will remove the element from the struct after compiling the blueprint. If the element is edited or a second element is added then ...

~FStaticMesh() can crash with race condition

UDN user reported frequent crashes in FStaticMesh::~FStaticMesh() on DrawListLinks[i]->Remove(false); Crash went away after adding critical sections to FStaticMesh::LinkDrawList(), FStaticMesh::Unl ...

StaticMesh->RenderData->LODResources[0].IndexBuffer empty in Standalone games.

GetArrayView is returning incorrect values in Standalone games. The correct values are returned when played in Editor. ...

App on Gear VR crashes when trying to join a listen server as a client

If the user tries to join a listen server with an app that is running on the Gear VR the App will stop working. ...

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 ...

Sqlite plugin crash on iOS

BuildPatchTool crashes on Mac and Linux when building android or ios with multiple chunks

"It seems that deallocation of TLazySingleton<FInternationalization> causes unhandled exception. If DISABLE_LAZY_SINGLETON_DESTRUCTION=1 is provided - the build completes successfully" ...

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. ...