Trados suddenly disappears after confirming a segment

This is very strange: sometimes Trados 2017 disappears after confirming a segment. There is no error message, the application simply disappears!

When I restart Trados the memory is reasonably up to date, the file I was reviewing obviously is not up to date. I thought this was related to the 'Align new content automatically' option in large memories (disabling this option seems to prevent the issue) but now it has just occurred with a memory of just 2,000 segment (with the above option enabled).

Can I find a log of what happened somewhere?

Stefano