Two things that can help us track down the issue for you. If you can list your Machine ID which appears in the Crash Reporter when you receive your crash. Also, if you could zip up the following files:
>diagnostics.txt
>minidump.dmp
>[ProjectName].log
which can be found at C:\Users[UserName]\AppData\Local\Microsoft\Windows\WER\ReportQueue
EDIT:
I realize you might not have the Unreal Crash Reporter pop up, so we can use the Windows Event Viewer to help as well. If you go to the Windows icon and type in ‘Event Viewer’ in the Search bar, open Event Viewer and you will come to a program which lists Overview and Summary. In the Summary of Administrative Events you will see different Event Types. You will want to focus on Critical and Error, look for an event which is time stamped near the time of the engine crash. Once you have found the event or events you can save the selected events (on the right hand action side bar) to a ETXV file which you can then upload and send to me for review. Also can you post your DXDIAG
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