Unreal Engine Issues

Draw debug will crash visionOS

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask. Frequency: 3/3 ...

ProfileGPU crashes when running under the mobile emulator

[CrashReport] Linux crash - /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so()

This is a new Linux crash in 4.18.1. There are a few similar but different callstacks that reference dri/radeonsi_dri.so() I've attached a log, but none of the ones I've looked at appear to contai ...

Asset toolkit can crash because the toolkit host IsEnabled_Lambda capture a raw UObject pointer

We must capture weak pointer instead of a raw pointer ...

ActorPositionWS Material BP node can crash when used in Post Process material

The ActorPositionWS BP node calls GetActorWorldPosition() in HLSL which references Primitive.ActorWorldPosition. But GetActorWorldPosition() is not protected by an #if HAS_PRIMITIVE_UNIFORM_BUFFER ...

[CrashReport] Cooking Commandlet crash - FAsyncWriteWorkerWithSplitExports::DoWork() [savepackage.cpp:563]

This is a regular commandlet crash that has occurred since at least 4.15. Source Context 543 IFileManager::Get().SetTimeStamp(*Filename, FinalTimeStamp); 544 } 545 } 54 ...

Crash happens when changing Animation Mode to any other mode while a Control Rig is selected.

This is a regression. Tested in //UE4/Release-4.27 CL18319896 An assertion is thrown when changing Animation Mode to any other mode while a Control Rig is selected. ...

Crash (Assertion failed "SystemInstanceController->IsSolo()") when enabling "Start with Tick Enabled" on a Niagara Component

Currently, Niagara Components are only expected to have their TickComponent() method called when their system is marked as "Solo", which makes them be simulated individually. In the most common scen ...

Packaging a Project with Blueprint Nativization Requires Crash Reporter Client to be Build for Shipping

Packaging a project in 4.15 from Github will fail if you don't have Crash Reporter Client built for Shipping. If no Nativization options are enabled, it packages fine, without having to build CRC. ...