[BobCratchett]

I've got to go catch a train in a minute, but some more debug info - next step of debugging is to isolate the problem, so I added the AlarmClocks and the CancelAlarms to a skin which doesn't crash (my own Conq mod in this case), performed the same routine (going from Home to Music, after leaving it to idle a few minutes) and was able to reproduce the crash there. So I'd say this is very likely a cause of crashes in MadNox, even if there are others.