I am also experiencing issues like @erikie with ARPs drifting slightly after changing to scale per track. Also after the first loop.
In the first half you can hear the ARP being tightly synced to the metronom of the DN but after changing to scale per track, the ARP gets out of sync in the second round… Am I missing something?
Update: I can confirm that after increasing M.LEN the drift appears later - right after hitting M.LEN…
Update: Feedback from Support:
We have confirmed this as a bug. The issue is due to scale per pattern not being defaulted to 1x when changing to scale per track. Setting per pattern scale to 1x manually is a workaround until we have a fix out. Thanks for reporting!