OSX, UE4.0.1 EXC_BAD_ACCESS while editor launching at IOHIDDeviceGetValue

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1

I had build Unreal Engine 4.0.1 from github by Xcode 5.1 and launched from it.
I got EXC_BAD_ACCESS at line 196 in HIDInputInterface.cpp

exc_bad_access_iohiddevicegetvalue.png
exc_bad_access_iohiddevicegetvalue.png1339×922 289 KB

[Logfile][2]

My hardware:

MacBook Pro Mid 2012
OSX Maverick 10.9.2
Model Name:	MacBook Pro
Model Identifier:	MacBookPro9,2
Processor Name:	Intel Core i5
Processor Speed:	2,5 GHz
Number of Processors:	1
Total Number of Cores:	2
 L2 Cache (per Core):	256 KB
 L3 Cache:	3 MB
Memory:	16 GB

I have system and home on different partitions.

2

just in case - usb devices info:

usb_devices.png
usb_devices.png734×418 30.4 KB

3

We have a patch for binary version ready (see here: https://answers.unrealengine.com/questions/12530/mac-os-1092-mavericks-launch-editor-u4.html), but I’m not sure when exactly will it get to GitHub. Sorry for inconvenience! For a quick fix, you can move IOHIDManagerOpen call and error check from lines 77-86 to earlier place of code, after IOHIDManagerCreate call and check, so to line 20. This should help.

4

I found that in my case this issue directly related to Wacom Intous 3 tablet devices (PTZ-930). If I tried to remove this device from usb port engine launched correctly.

5

Thanks for update. The patch and change I mentioned should solve your problem.