RDLC Report repeating multiple lines on report. (NAV2009 R2 RTC)

Hello,

I have a report based on sales header / sales lines. On the RDLC layout of the report there is a Body which shows a lot of detail from the sales header.

If there is no classic sections detailing line information then the Layout in RDLC works correctly and fits on 1 page.

As soon as I add a section for sales lines onto the classic version of the report (even if I don't modify the RDLC layout at all) then the report prints multiple sets of the header information (if there are 6 sales lines then the report will repeat the data 6 times, if there are 8 lines then it will repeat 8 times etc etc)

The report Layout was created by the "create layout suggestions" from Classic Client.

There is no header or footer on the Layout and its a simple single body report.

I cannot see why the report is repeating data and I'm pulling my hair out!!!

Can anyone give me any ideas on how to address this please??


Many Thanks in Advance

Regards

Lee