mtr - loops getting out of sync

Martin Beck's icon

The following patch visualises the playpositions of 3 tracks of [mtr] with a multislider and also calculates the difference.
I see that the loops get out of sync over time (several minutes) if I leave the locked patch running without user interaction.
I see the loops get out of sync immediately if I minimise the patcher window or if I unlock the patcher.
Is this normal behaviour? Max 8.1.8 MacOS Catalina

Max Patch
Copy patch and select New From Clipboard in Max.

Details:

record is done with "length 0, record" and "definelengthandstop"

👽'tW∆s ∆lienz👽's icon

Is this normal behaviour?

ya, i think it might be: if i set my scheduler(in 'Audio Options') for "Scheduler In Overdrive" and "In Audio Interrupt" then i don't get any drift out-of-sync(even just "Scheduler In Overdrive" is enough to take care of it for me)

Martin Beck's icon

Thanks, Overdrive was deactivated on my MacBook. Turning Overdrive on helps to keep the tracks in sync.