Unreal Engine Issues

Setting GDelayTrimMemoryDuringMapLoadMode = 2 causes crash on same map reload

GDelayTrimMemoryDuringMapLoadMode is a CVar that controls whether a garbage collection should take place during map change after unloading the previous map and before loading the new one. By default ...

Shadow map z-fighting when using Overlay material

UInstancedStaticMeshComponentRemoveInstances crashes if called with an empty array

This looks like it can be fixed with an early-out when the passed array of indices is empty. Log:[2024.01.03-16.38.36:091][291]LogOutputDevice: Warning: Script Stack (1 frames) : /Game/BP_Crashy.B ...

Groom shadows stay visible when component is hidden

This appears to happen with both Virtual Shadow Maps and Cascaded Shadow Maps. ...

Merge Actor - Textures created with the "Merge" option are not visible in the Content Browser

A recent modification to the CB behavior made it so that only the main asset of a package is visible in the CB. It was unknown, but the merge actor tool "Merge" option has been creating a single pa ...

Blueprint Typing Potentially Incorrect when using Chooser Plugin

This appears to be some form of type confusion. In editor, the type of the result pin is a Packed Level Actor Class Reference, but at runtime, the returned value is a BlueprintGeneratedClass. ...

LevelStreamingPersistence plugin improvements

UDN: [Link Removed]Fix SaveToFileCommand : [Image Removed]Problem with private properties serializing structs:[Image Removed]Add support for runtime instantiated UObject classesAdd single restore c ...

UDeveloperSettings change delegate not executed on import

From UDN case #00655218: We extensively use the UDeveloperSettings class to automatically register project and editor settings for the different C++ plugins we build. For instance : UCLASS(config ...

Copy Actors out of play mode ( 5.3.1 )

From UDN case #00645621: Is it possible that this function has been deactivated? In 5.03 I can copy objects from the game mode. ...

Bug when trying to Ctrl+Z after Replace Actors

From the UDN case #00649142: My team noticed a bug where sometimes when using "Undo" (Ctrl+Z usually) the BP they are working on disappears in the level. We were able to find a 100% repro case when ...