fwiw, I export to wav files by highlighting all in the label window>rt click>save selection as...
what I do is save a wedt file once everything but the resample/dither is done. that way, I open it>resample(44.1)/dither(16bit)>save to wav16 (and don't save the changes to the wedt file); open the wav16, load the labels>select all labels>rt click>save selection as. then for 24/96, I open the same wedt file, again, dither(to 24 bit), save to wav24, open wav24, load labels, save selection as...
hth