The BPM is repeatedly being reset to 20 in Synthesizer V Studio V2 ARA2, causing rendering to become extremely slow and eventually freeze

Synthesizer V Studio
1

Hi,

I previously reported a similar issue, but I am posting again because this problem continues to occur frequently. At this point, I believe this is likely a bug rather than an isolated project or file corruption issue.

I am using Synthesizer V Studio Plugin V2 as an ARA2 plugin in Logic Pro.

System Environment:

  • Synthesizer V Studio V2: 2.2.1

  • macOS: Ventura 13.7.8

  • CPU: 4.2 GHz Quad-Core Intel Core i7

  • DAW: Logic Pro 10.8.1

  • Plugin: Synthesizer V Studio Plugin (ARA2 / V2)

The problem

When I save a project and later reopen it, the Synthesizer V plugin’s BPM is sometimes reset to 20 BPM and becomes stuck there.

This causes a serious problem during rendering.

Because the BPM is incorrectly set to 20, rendering becomes extremely slow. In some cases, the rendering does not finish and Synthesizer V eventually becomes unresponsive/freezes.

This makes the saved project effectively unusable until the problem can somehow be resolved.

What I have observed

  • The problem occurs repeatedly, not just once.

  • It can happen after saving and reopening a project.

  • The BPM is set to 20 BPM instead of the project’s actual BPM.

  • The BPM remains stuck at 20.

  • Rendering becomes extremely slow and may never finish.

  • The plugin may eventually freeze while rendering.

  • I do not experience this problem with the Synthesizer V V1 plugin.

I have also previously experienced the playback position becoming incorrect/locked after the BPM synchronization fails.

Troubleshooting

I have tried:

  • Disabling/re-enabling the bridge

  • Manually entering the correct BPM

  • Using BPM synchronization / Match BPM

  • Resetting the bridge

  • Reopening the project

However, the problem can return after saving and reopening the project.

Since this has happened repeatedly, I am beginning to suspect that there is a bug in the V2 ARA2 implementation, particularly with Logic Pro on Intel-based Macs running Ventura.

Has anyone else experienced the BPM being reset to 20 BPM when reopening a saved project?

And is this a known issue in Synthesizer V Studio V2.2.1?

Any information about a workaround or upcoming fix would be greatly appreciated.

Thank you.