Hi Rikkisbears and thanks for your response!
How can I check and put the bank & program change numbers are present in the midifiles ?
I am using the same PC the same midi/usb connection the software sequencer and the same midi files as I used to do the same things with QY100 and no problem ! I realise that sending midi file through the software sequencer the instruments inthe patches/mixer remain all the same (Pianos) it should changes normally automatically into the same distribution as in the midi files.