Make sure that you are sorting by the field that you have on the sub-summary... also, a silly thing that happened to me at the beginning, the field was showing up, only the field font color was the same color as my background so I didn't see it and all along I thought it wasn't working... good luck!
Thanks for the help...the text is black on a white background, and the sub summary sort is the same as the field. The field itself is a summary field..that shouldn't be a problem right?
Just to be clear, the summary field, is summarizing the field you are sorting by? Correct?
In other words, if you have a sum_state as the field, you are sorting by state… correct?
It that's the case, that should be working…
The sub-summary part will have a field defined as the break field. The sort order must include the break field, if it does not the sub-summary part is not displayed.