Unreal Engine Issues

Level Sequence option "Allow Level Edits Only" causes Frame Rate drop when used

When using the new option "Allow Level Edits Only" there is a drastic frame rate drop while playing the sequencer. This frame rate drops when only using this option. Versions Tested: 4.16.3 - CL: 3 ...

[CrashReport] Linux crash - error VK_ERROR_EXTENSION_NOT_PRESENT

This is an early trending Linux crash in 4.18, but also occurred in 4.17. It seems to occur before a project loads. Callstack from Log[2017.10.26-01.39.08:606][ 0]LogVulkanRHI: Display: - Found g ...

Material compiler incorrectly generates error

Under certain conditions, the material compiler appears to detect errors where there are none. I debugged the particular case of the RGBtoHSV material function with JonathanL, and we believe that th ...

Thumbnail of material is not previewed if FSoftObjectPath is used.

https://udn.unrealengine.com/questions/437463/%E3%83%9E%E3%83%86%E3%83%AA%E3%82%A2%E3%83%AB%E3%81%AE%E3%82%B5%E3%83%A0%E3%83%8D%E3%82%A4%E3%83%AB%E3%81%8B%E8%A1%A8%E7%A4%BA.html ...

Crash when calling SetActorLabel in Construction Script

Calling SetActorLabel in construction script will cause a crash. Also occurring in Main @ CL 4235929 ...

SceneDepth failed with MSAA on PC Mobile Preview

In PC ,RHICreateTargetableShaderResource2D will create SeparateTarget and ShaderResource, and after basepass resolve depth from TargetableTexture to ShaderResourceTexture. But in mobile preview,  ...

REGRESSION: Metadata no longer import in Unreal from SKP files

The reason is simple, the actor names is not the same as the metadata name: [Image Removed] ...

CrashReportClientEditor crashes when starting Unreal Engine

Destroying a camera actor makes the level Dirty

This does not occur except for Camera actors. ...

GetBoundObjects is not returning spawned objects when the playback start is nonzero