Unreal Engine Issues

MfMedia: Media playback can deadlock if started too soon after opening

On a Linux project, starter content does not appear in content browser until project is reopened

When creating a new project with starter content on Linux, the only asset that appears in the content browser is Floor_400x400. Closing/reopening the project will cause the rest of starter content ...

Editor tabs switch when pressing stop during PIE

While playing in PIE, the editor switches back to the main tab when you're in the blueprint tab after you've pressed 'stop'. Therefore, if you're debugging a situation within the blueprint, you're i ...

Editor Crashes when clicking on Transform(Modify) Bone node in Content Examples

Crash Report: [Link Removed] Error Message: Assertion failed: ResultString.Num() == 3 [Link Removed] [Line: 298 Description: In the Content Examples Project, in the Blueprint, "CurveAnimBlueprint_ ...

Temperature slider seems to be inverted

The slider for the temperature gauge on lighting seems to be inverted. The cooler the temperature is, the redder the shade. The hotter the temperature gets, the cooler it looks (blue). ...

Creating Destructible with PhysXLabs and Fracture Tool in UE4 yield different results and same settings

When creating fracturing a mesh in PhysXLabs vs UE4 fracture tool with both using Voronoi fracture and set to 25 chunks will give different results. The mesh (Attached below along with reference i ...

[CrashReport] Crash on Mac during cook - UEditorEngine::UpdateAutoLoadProject()

This is a top crash on Mac. This crash has only occurred on the 4.16.1 release (there are no records of it in 4.16.0). Repro steps are currently unknown, but the crash occurs in Commandlet mode and ...

Expanding a macro with split struct pins causes internal compile errors

Expanding a macro that passes a struct with split struct pins to a function causes internal compile errors. Attaching sample project, can be recreated with steps above. ...

JAR files in libs are not included in classes.dex with Gradle

JAR files copied from Intermediate/Android/apk/libs for Gradle packaging are not included in the classes.dex in the final packaged APK. ...

[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 ...