Found more info. I think it is not an error, but humanize is integrated. I had a look at Melody > Edit melody track > Step edit melody. From a song created by the Melodist.

The starting points are on different clicks and the durations also varies. So it is done on purpose and this explains the variations in the midi. Correct me if I am wrong.

Last edited by LeoK; 04/07/22 07:52 AM.