Knowing the bounce problem, I did a Freeze Tracks instead, selecting the entire short sequence, and I got some gargled sounds on two of the eight stereo tracks I froze. Freezing one at a time produced good results. So I don't know if things got worse with DP8. This is on VE5, but I didn't use any event inputs.
Will do some more tests once (if) I survive my current deadline. Anyway, hope things gets worked out soon.