Instrument changes when using Nuendo/Cubase

Hello.

I was intending to make a new song with some midi data in Nuendo and in Cubase but when it comes to a soundtrack using Pro-53 VSTI, the timbre that had been chosen changes to another one (but the timbre still belongs to this VSTI). When I stop playing it and play it again the same thing happens.

So my question is: how am I supposed to select a timbre so that it wouldn’t be changed along the soundtrack?

Regards,
Raniéri.

Although I’m surprised it effects the Pro-53, you probably have embedded bank/patch data being sent from the MIDI track. Open the MIDI track in the list editor and remove those… or just use the “show used CC” in the MIDI Editor and see if there are patch or bank automation showing.