What issue your specifically observed in the section?
For example, we have a section containing an 'inline grid triple' layout in which we use 'stacked with labels to left' layouts. In the .pdf only the first column is displayed and the labels are stacked on top of the values.
Checking Ignore application skin when exporting to PDF check box.
This applies to reports. Our issue concerns .pdf generation in case-flow using the smartshape.