Unreal Engine Issues

Crash when quitting the editor with VR Mode enabled

Qutting the engine with VR Editor on causes a crash. I could not determine a way to close the VR Editor internally so I terminated the Project by using the Desktop. Many users among the community ...

[CrashReport] static void AddHairStrandMeshProjectionPass(class FRDGBuilder & const, class FGlobalShaderMap *, const bool, const int, const struct FHairStrandsProjectionMeshData::Section & ...

Crash in FVulkanLinuxPlatform

Using the command in the repro steps on Linux will cause the Editor to crash and CrashReporter to pop up with a callstack. This behaves differently when tried on Windows with -vulkan. The project ...

[AI] Crash in UGameplayDebuggerLocalController::OnDebugDraw

UGameplayDebuggerLocalController::OnDebugDraw crashed with a dereferenced nullptr for CachedReplicator. ...

[AI] SmartObject with Precondition in a persistent collection crashes editor when exiting PIE

Adding the Precondition to the SmartObject caused an assertion when it was part of a persistent collection. The precondition needs to be able to pass its Activate method to cause the assert. This b ...

Crash may occur if Actor is selected on the outliner and then discarded

Discarding Actor while it is selected on the outliner may cause a crash. This may be caused by operations from C++ not being listed in the UNDO list, which may refer to unreferenced objects during ...

Editor crash when drag and drop the Image widget in a NamedSlot on the designer

When first added as a child widget in NamedSlot, the child widget can be dragged and dropped onto the parent widget's designer. The following assert causes a crash. Assertion failed: ParentWidget ! ...

[CrashReporter] UE4Editor-D3D12RHI!CreatePipelineStateFromStream(ID3D12PipelineState * &,ID3D12Device2 *,D3D12_PIPELINE_STATE_STREAM_DESC const *,ID3D12PipelineLibrary1 *,wchar_t const *)

Generated from CrashReporter ...

Hardware Raytracing on Lumen can cause a crash on AMD Radeon GPUs

Hardware Raytracing support can cause a crash on AMD Radeon GPUs when creating the RT pipeline state. ...

Crash: Opening Project Browser from Launcher with VR Mode auto-entry enabled with HMD active (worn)

If you enable VR Mode auto entry, close the project, and then attempt to launch the engine again from the Binary launcher while the HMD is active (being Worn), the Project Browser will crash ...