Hi
On an instrument track I choose the Korg Wavestation, it's a plugin that has some banks, with many sounds in each bank.
I see that when I save the song, Cakewalk memorizes the sound bank but does not memorize the patch, so when I open the song again, it plays differently because the patch has not preserved it and it always puts patch number zero.
I have fixed this from the Even List, creating an event at the beginning of the song where it puts the bank and the patch. It works g