@Christoph-Hart The issue happens when recording audio in real time, as well as when freezing and flattening the track.

I’ve tested it in Logic Pro and Ableton Live, and the behavior is the same in both.

Hi,

I’m using the default clock-synced arpeggiator (TransportHandler grid callback) together with a Sampler.

I tried a few adjustments on my side, but even with the original code, when I render/bounce to audio or freeze/flatten, the arp sometimes skips one step or jumps by one grid unit (eg. 1/16, 1/4), and the rendered audio ends up off the grid.

It plays correctly live, but the issue consistently appears when committing to audio.

Is this a known limitation of grid-based arpeggiators when rendering, or is there a recommended way to handle grid start / host position to keep the audio perfectly in sync?

@Christoph-Hart I just tested the latest update, and I’m thrilled to say the issue has been resolved! The changes you implemented completely fixed the problem, and everything is now running smoothly in Ableton.

Thank you so much for your quick response and support. It’s incredible to have such an active and dedicated community here. I truly appreciate all the help!

@Christoph-Hart The problem is also occurring in the Sine generator from what I tested here, it seems that it generates duplicates when it loops

@d-healey I tested the plugin in Reaper, and the issue does not occur. This suggests the problem might be isolated to how Ableton handles VST3 plugins, particularly during looping.

@Christoph-Hart I tested the suggested adjustments, including setting the preload size to 8192 and the streaming buffer size to 4096. I also adjusted the envelope, voice amount, and fade time. Despite these changes, the issue persists. What puzzles me is that this problem does not occur with the AU format in Ableton Live.

@Christoph-Hart I sent you the example project by email and in the private message on the forum

@d-healey Yes, I sent you the example project.

Hi everyone,

First off, a big thanks to all of you for the incredible information shared here,
this community is amazing, and I truly appreciate it!

I’m currently working on a plugin that functions as a sampler for triggering short audio samples. It’s a pretty str8 FW project, designed specifically for basslines in electronic music. Since these basslines often consist of repeated 16th notes, I’ve noticed an issue: when using the plugin in Ableton Live with VST3, VST2, the notes sometimes get "muted" and stop playing altogether, but then gets back after few seconds.
To troubleshoot, I’ve even tried simplifying the entire build down to just a basic sampler with minimal functionality, but the issue persists.

This problem seems to be exclusive to Ableton and the VST3, VST2 format.

Has anyone here experienced a similar issue? If so, I’d love to hear your thoughts or suggestions.

Thanks in advance for your help!