Hi ,
Can you post on the **AnswerHub**along with the following information:
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If you are experiencing a crash, then please provide us with the .LOG and .DMP files from your [project]\Saved\Logs folder. Additionally, you can please send us the CrashReportClient.log file located in C:\Program Files\Unreal Engine\4.0\Engine\Programs\CrashReportClient\Saved\Logs.
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Can you also list any specifics about your project, whether it is code or BP based, and any steps that you think are necessary to replicate the. Also, posting relevant images, if you are able to do so, will make the replication of the much easier as well.
Once you’ve posted can you edit your comment above or post a new reply with the link to the question on AnswerHub. way we’ll be able to get looked into as quickly as possible! 
Thank you!