Stage 3 arp pattern reset on chord change issues

[solvethebox]

Hello - I have a long arp section where I play a new chord every two bars. I have the KB hold on so that the arp's rhythm doesn't break.
I need the pattern to reset every chord change. The arp pattern and the meter of the song don't perfectly line up, so this reset is important for the effect I'm looking for. Sometimes the reset works, but sometimes it seems like the Nord's arp has a mind of it's own and it keeps playing the pattern with no reset when I play a new chord. The notes change when I play a new chord but not the pattern. This makes the arp's pattern contour out of time with the song, it's almost like the arp get's stuck in its pattern. Stuck so much that if I change to another patch and back to my arp patch and play a chord, the arp does not start from the beginning. It's like the arp has been running under the hood the whole time.

Weirdly, this happens reproducibly if I send a MIDI clock from my DAW (the arp's tempo is clock sync'd), but if I change to internal clock (by disabling clock send in Logic) the arp sometimes resets on a new chord, but then it'll eventually get off. Any ideas that I can troubleshoot?

Here are my arp settings:
Clock sync'd, arp temp is 1/8 triplets
Every chord have 5 notes
Arp pattern is U/D
2 octave arp
KB sync on or off (it doesn't seem to have an effect)
KB hold on

Thanks in advance!

[WannitBBBad]

As you're familiar with MIDI, I would suggest setting up a MIDI program to simultaneously play the five notes and move to the next five.. recreating how you manually play it (but with perfect timing) to see if you have the same problem. I tried it at a slow pace and it is hard to get it right every time; one note played a millisecond before the first note of the chord can throw it off. The pattern will be different if any of the five notes is a repeat of another, for example a chord with a low and high C. I also noticed that if you play a five note chord and hold one of the five while changing to a new chord, it retains all of the notes. Make sure SUSTPED is turned off for the synth as well. Good luck!

[maxpiano]

Why not using an arpeggiator MIDI plugin in the DAW, for example using the Extern to send the played notes tp the arpeggiator and setting the Synth as DualKB on a specific channel to receive back the arpeggiated notes from the DAW?

[solvethebox]

Both good thoughts, thanks. Yeah, I think that using a MIDI arp in Logic would probably be good for the studio recording. Eventually I'd like to be able to play this live.
The arp is 1/8th note triplets and the tempo is 131 bpm, so I don't think I'll be able to perform the part without the arp. I can definitely work on my performance of the part, but I'm not convinced that the issue is only my subtly inconsistent performance.

With the KB hold on, sometimes the pattern resets on a new chord and sometimes it doesn't. Even if I didn't hit the notes in the right order or if the chords had common notes, the pattern (starting at the lowest note played then moving up the 2 octaves) should still reset. But sometimes the chord notes changes but the arp pattern begins in the middle of the ascent or descent.

[solvethebox]

I just tried something to explain my issue.

For this example, let's just take one chord. With the KB hold off, I'd expect that the pattern would begin at the lowest note played every time I hit the chord. However, with the 2 oct arp, if I hit the chord and let it play the first oct, then release, the notes stop as expected. But if I hit the same chord again the pattern might be in the second octave. So the pattern seems to keep going even if there are no keys played. Then when I hit the keys the notes play at whatever point the pattern is running.

I'm going to try creating a patch from scratch to see if this is a patch issue or a global one.