Last time i tried it the piviot table wouldnt convert to a table could only bring in as an imagine into nprinting. Is that not the case now? Im on 17.3.
If you are bringing it in as an imagine then sorting shouldnt be an issue. If you are importing a table try bering in just the table object and keep its formating no customising of the individual columns.
I mimic but do not use a piviot table in my (Nprinting dedicated) Sense app but using a straight table then brought it into nprinting as a straight table. It took more effort to setup but allowed me to bypassed the sorting and layout issues I just brought it in as is.