Unreal Engine Issues

Crash When opening context menu in sequencer

Altering a key in an event track that contains a struck with a static mesh variable will cause the editor to crash. ...

Camera bookmark modifications are not saved unless it is a new bookmark

This is not a regression. Tested in //UE5/Release-5.0 cl20979098. Camera bookmark modifications are not saved unless it is a new bookmark. From the user reporter: "FBookmarkTypeToolsImpl.CreateOrS ...

Certain Niagara particles can disappear after switching to the debug cam

[CrashReport] UE4Editor-CoreUObject.dylib!UObject::Rename()

This is an infrequent Mac crash that has occurred for a few users in 4.17. Users have not provided any description of their actions when the crash occurred. The callstack has a few similarities to ...

BP - Nativization will fail at cook time if a BP class and a User-Defined Structure reference each other.

Note: This happens with "Exclusive" nativization mode as well. This occurs because the nativized UDS 'GetDefaultValue()' method is generated into a .h file rather than a .cpp file. This creates a c ...

Crash during shader compilation when r.Shaders.Optimize=0

The primary shader crashing is "FVisualizeLumenSceneCS" which I've put in the callstack section, but I think this is more likely a binding problem as I'm also see the following crash with cloud shad ...

[CrashReport] Linux crash - FMonitoredProcess::Launch()

This is an infrequent Linux crash occurring in 4.17.1. Callstack from Log[2017.09.06-15.26.30:028][666]LogLinux: Error: appError called: Assertion failed: Assertion failed: [File:/home/***/.local/ ...

Circularly referenced blueprints cause stack overflow in a package game without IOStore

Shader compiler errors when using enclosed local variables in a material while ray tracing is enabled

A licensee is seeing an issue with a couple of post process materials after enabling ray tracing. While the materials presenting the issue fail to compile for different reasons, they both refernce t ...

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRHICommandContext::RHIEndDrawIndexedPrimitiveUP()

This is a trending Mac/Metal crash in the 4.18 release, although although it has existed with low frequency since at least the 4.16 release. Users have not provided any descriptions of their actions ...