Here's what I was doing that repeatedly caused the crash.
I was double-clicking on a track and then very quickly (within 1 or 2 seconds) double-clicking on another track. I was doing this repeatedly for 4 to 8 tracks or so. Usually when I did this there were no problems, but sometimes it would cause a crash.
To better help you understand the repro, here's WHY I was doing this:
I had ripped an Audiobook CD to WMA files. This created a bunch of tracks that I wanted to combine into 1 file per chapter of the book. I would play one track just long enough to hear if it began the next chapter, and if not, then I'd quickly play the next track, etc. This CD typically had about 7 or 8 tracks per chapter, so I had to try to guess which track started the next chapter and then listen to the tracks until I found the right one.
I hope that helps.