Hi,
Does this issue happen to all machines that with Word 2013 installed?
Is there any information logged in the Event Viewer when Word crashes?
As this issue doesn't happen when manually perform a search and replace, it's more likely that the issue is related to the VBA/macro. Since we are not the best resource for coding, I'd recommend you post a new question to the Outlook for Developers forum
for further assistance. Please involve the VBA code in the new post.
https://social.msdn.microsoft.com/Forums/office/en-US/home?forum=worddev
The reason why we recommend posting appropriately is you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction with us.
Thank you for your understanding.
Steve Fan
TechNet Community Support
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