i don't have an answer but experienced this same problem. my solution was to export one giant track and cut it up in cdwave.
thanks, thought of this... but i'd prefer to spit out the 24 bit version, cut that up so that i have identical 16 and 24 bit files in terms of where they are split.
Then either:
(1) cut your 24 bit with CD Wave and dither/downsample the individual tracks. Obviously your 16 bit tracks will be split identically.
Or:
(2) split your 24 bit tracks, save as a cue sheet, dither/downsample the whole big file down to 16 bit, and then apply the cue sheet.