Turner what are you doing when it crashes? LET ME GUESS you are clicking in the sequencer time line where the key frames are? ITs been a killer bug for over a year now Its still in the latex 8.5 beta and it would appear no one thinks its any thing to worry about.
SO what I suggest is that you SAVE after every single operation you preform especially anything in the time line or you’ll loose everything you’ve done.
It would appear this is going to be a permanent bug in carrara from 8.0 till they end up killing it or selling it off.
But in the mean time you may want to make sure your daz temp folder is always empty.. as this to is a permanent BUG in Carrara no one wished to do anything about either!
WELCOME to carrara on the mac bubby!