[nzlotrfan]

I am also experiencing this issue, and I believe I know how to replicate it.

I'm in a set list, going down the list right clicking each song >> Edit Audio (Or just EDIT as they both create same result) >> then hit Ok. I then select another song, repeat the above steps. If you keep doing this for different songs then it's fine. BUT if you try right clicking and clicking edit on a song that you've already right clicked on and hit edit and ok, it freezes up.