I can't remember what exactly I'd been doing leading up to this, but I had a search tab open with the results of a Bible search for the phrase "one thing" in All Open Bibles. I had been clicking around on various results to look at them. The last thing I did before Logos hung and eventually needed to be forced to shut down was I clicked on the highlighted phrase "one thing" in the Ps 61:11 search result. You can see that one is a different color, since I'd just clicked on it. It never opened up to that passage in my Bible tab, and Logos was left in a "Not Responding" state indefinitely, until I finally terminated it.
Screenshot from before I forced it closed:

Log file (includes hours or even possibly days of use up to that point; sorry, couldn't reproduce in a short session).
3348.LogosHang L7.14 20180419.zip