That seems like a pretty good assumption. I played for awhile last noght and it did not crash at all really after those two times. But I didnt see a big school open fire again either.. Also looking forward to that new UI! Looks great!!
The fix for this is going to require a significant overhaul of the sound implementation. Unless it's causing regular crashes, I'm going to either fix this as part of the next major release or as a patch after the next release. I'd have to do a pretty big change in dev direction to get this fixed immediately and that would push out some really important stuff I'm working on for this release.
Thanks for your patience: I'll let you know when I have a fix underway!