I created a xdp template in Adobe Livecycle Designer with sample XML data.
I used online help to Setup table that Groups data. (LiveCycle ES2 * Adobe LiveCycle Designer ES2).
The nested tables work fine, but if the amount of rows expand the conent area the pagination sometimes work (see example, page 4/5) and sometimes the rows are fallen off the bottom of the page (see example page 3).
From my perspective it seems to be a Rendering Problem.
Do you have further ideas or can you help me otherwise?