Rendering Midi File

Pianoteq Stage Ver 4.5.2

I made a midi mapping, inserted program changes and saved this map as my song name. The playback works fine and my program changes are recognized. However, when I render the file, Pianoteq reverts to the default
midi map and piano patch. Also each time I load the sequence I also have to reload my midi map. I thought this would save with the sequence. Maybe this is the fault of my DAW,PG Music Realband, I don't know? Can the rendering problem be solved? I have done the workaround,which is converting the midi to a wave file in real time. I would like to be able to keep my file in the midi domain all the way through.
                 Thanks...Bobby