Unreal Engine Issues

The UI layer system in Lyra leaks widgets when changing level

BlueprintNativeEvent functions break on hot reload

A blueprint that uses a node for a BlueprintNativeEvent function breaks on hot reload. Blueprint cannot be saved or compiled. Compile error states: Error This blueprint (self) is not a HOTRELOADED ...

SetMaterial allows the user to add a Material which updates the GetMaterials array but not GetNumMaterials

SetMaterial allows the user to add a Material which updates the GetMaterials array but not GetNumMaterials. The user who reported this was trying to add a material to a skeletal mesh during runtim ...

Package game and standalone game crashing (possibly related to UE-6766)

Crashes in UGameplayStatics::GetPlayerController, probably because World is NULL. When you package this vehicle game setup or play in standalone, the game will crash. 4.6.1 release crash (Standalo ...

Setting Pressed Sound for Widget Style Doesn't Set the Value

Attempting to set the Pressed Sound for Widget Style dynamically never actually sets the sound. When you click the button, you get no pressed sound. However, when setting the Pressed Sound through t ...

Memory Leak occurring when switching between levels in Standalone

A memory leak seems to occur when switching between levels multiple times. This is being monitored by memreport full ...

'Get Distance Along Spline At Spline Point' Causes Crash

User reports that the reason for the crash is that because UpdateSpline is false on the AddSplinePointAtIndex blueprint node, this line is never called [ReparamTable.Points.Reset(NumSegments * Repar ...

Data Asset Deserialization crash after upgrading 4.19.2 to 421.1

The User has provided an extensive log of their code base setup, and the process leading up to when the Assert occurs. "Our game mode & player state FSM are setup in a data driven manor using UDa ...

Duplicating a blueprint that implements an interface and then removing that interface will cause compile errors that don't occur if the interface was removed from the original BP

See steps to reproduce. Looks like the fixup when saying Yes to "Would you like to transfer the interface functions to be part of your blueprint" doesn't work correctly on the duplicated BP. Inter ...

[MetaSounds][Stereo Mixer] - When changing the gain on the Right channel dynamically, the output has clicks and pops

When changing the right channel gain of the stereo mixer at runtime, it generates clicks and pops in the output. ...