Unreal Engine Issues

Missing DirectX redist on clean machine

Running a packaged UE4 game with app-local dependencies on a clean Windows machine will fail due to missing XInput DLLs. These components are not distributed with Windows by default any more. We sho ...

Load level sequence asynchronously

https://udn.unrealengine.com/questions/355667/sequencer-async-loading-issue.html ...

Defaults aren't saved for spawnables when being destroyed

Plugins do not work on Mac if they are added to a project via a symlink

The Editor on Mac does not recognize plugins that are added to a code project via symlink (the plugin code is located somewhere other than in the project's Plugins folder). Xcode properly recognizes ...

FPS when adding instanced static meshes in a random order is significantly lower than adding them in order by X,Y,Z location

Adding instanced static meshes in a random order by location gives 25% of normal frame rate, compared to adding them in order by X,Y,Z location. ...

Nav Link Component's Transform Being Ignored

Nav Link Components are not respecting transform changes inside of the blueprint's viewport. They will always originate from the Actor's origin point. ...

Nullptr dereference in FHeadMountedDisplay::UpdateSplashScreen()

A customer has had problems running a game with a splash screen when passing -game flag to the editor. UpdateSpashScreen will call GetCurrentFrame, which can return a nullptr but fails to verify it ...

Crash Clicking on Enum in BT Decorators After the Enum Has Been Altered

Clicking on a Behavior Tree decorator that references an Enum blackboard key will crash the editor if that Enum has been altered in the method described in the repro steps. If you set decorators to ...

Nativized BPInterface_Button fails to compile with BP Compilation Manager

I turned off BP Compiler Manager and the package was able to complete. According to the log, BPInterface_Button is the asset that is failing the package This is a regression from before BP Compil ...

Mobile platforms and HTML5 do not support bRuntimePhysicsCooking, forcing it to off

UEbuildIOS.cs (and equivalents on other platforms, including Android and HTML5) force Target.bRuntimePhysicsCooking to false, presumably because we haven't compiled the necessary libraries yet for t ...