Same problem. I used Slice to take a CD-length .wav file (761 MB, 1hr 15 min length) and split into files based on 2 seconds of silence with the default -25 db silence threshold. It only creates one segment, labeled as "Part 02 of 17". 17 segments sounds about right, but there is no part 1 or parts 03 through 17 either. Part 02 does seem to be a valid segment though. I've tried different time intervals and silence thresholds, and while the number of parts changes, it always creates Part 02 and nothing else.