Unreal Engine Issues

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 in RecreateClothingActors() when using MasterPoseComponent

As part of RecreateClothingActors(), the master pose component is not checked for a valid mesh and therefore when TransformComponent->GetComponentSpaceTransforms() is indexed into, crashes can occur ...

Lighting channels are not supported with tiled lighting

Reported via UDN ...

MediaPlayer failed to be open on Mac and IOS

Using nativized functions on buttons to spawn meshes causes assertion failure

An assertion failure is thrown when using nativized functions on an Android device. ...

Server crashes when client connects after Server has reloaded a sublevel with a deleted actor

UNetDriver::DestroyedStartupOrDormantActors maintains a list of deleted startup (and dormant) actors. This is used to notify clients that have joined the server of Actors that need to be destroyed ...

"Support Compute Skincache" throws an Assert for games on Linux

After enabling "Support Compute Skincache" in the project settings and packaging a game on Linux, the packaged game will throw an assert. Any setting that turns "Support Compute Skincache" on automa ...

Sequential Level Loading in Python causes Crash

Loading all the levels selected in the Content Browser and running the aforementioned Python script causes the editor to crash Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 5 ...

Client crash on seamless travel in DataReplication with lag

When server traveling, client may crash due to lag while attempting to replicate object/property. ...

Virtual Bone caused nanite skinned mesh crash

When a Nanite skeletal mesh has a virtual bone the engine can crash when changing LODs ...