SIGSEGV: invalid attempt to access memory at address 0x0

Platform - Mac - Dec 31, 2014

Multiple crashes with the crash report message: SIGSEGV: invalid attempt to access memory at address 0x0 Crash Report: [Link Removed] <unknown module>! FSlateApplication::ProcessMouseMoveEvent(FPo ...

Mobile Preview dynamic shadows not showing on Mac

Platform - Mac - Dec 19, 2014

When Using mobile preview in the 4.7 preview build, or in the changelist provided, Dyanmic lighting is not showing shadows when changed to movable. Following the steps below, you will see no shado ...

Constant Crashes on OS X 10.10.1

Platform - Mac - Dec 15, 2014

User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...

MAC: UE4 Editor crashes in gldReadTextureData on Nvidia 330M

Platform - Mac - Dec 15, 2014

A user is reporting semi-regular crashes on his MBP 6,2, with Nvidia 330M GPU. This is a GL 3.3 GPU which we don't routinely test against, he may have the 256 or 512MB model, but this is unclear. T ...

UE4 3rd Person Blueprint PIE Caused Kernel Panic on iMac/AMD 6770M

Platform - Mac - Dec 12, 2014

When I was running the default 3rd person shooter template which had no modifications yet, I pressed play and began to move around. Within a few seconds, the computer shut off as if the power cord h ...

CRASH: OS X frequently freezes when working with blueprints

Platform - Mac - Dec 2, 2014

User complains of frequent crashes when using blueprints and has provided repro steps for one incident that tends to cause a crash. While we are not able to reproduce the issue here, the customer ha ...

Shadows in Unreal for OSX not showing correctly

Platform - Mac - Dec 2, 2014

I have copied a project from Windows to my Macbook Pro. It's the first time I try Unreal for OSX. In Windows everything worked perfectly, but in Mac shadows are showing like this: alt text Buildin ...

Striped Stencil Artefacts across scene under OS X using ATi 4xx0 GPUs

Platform - Mac - Nov 21, 2014

From AnswerHub: Lighting problem [Mac] I am currently testing UE4 on a Mac at my college, but there are these strange lines where light is being cast onto surfaces. I'm currently wondering if this i ...

LIVE: On MAC, Atmospheric Fog Preview Renders Incorrectly with Default Settings

Platform - Mac - Nov 14, 2014

On a Mac, Following the tutorial located here: https://answers.unrealengine.com/questions/132223/macbook-pro-preview-rendering-issues.html When opening a new level, the atmospheric fog renders soli ...

Dragging the Translation Widget in Perspective Viewport on Mac in a second monitor does not translate the selected Actor

Platform - Mac - Nov 11, 2014

Dragging the Translation Widget in Perspective Viewport on Mac does not translate the selected Actor, and when dragging is released the cursor is moved to the top left corner of the Viewport. Happen ...